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EC number: 226-942-4 | CAS number: 5570-77-4
- Life Cycle description
- Uses advised against
- Endpoint summary
- Appearance / physical state / colour
- Melting point / freezing point
- Boiling point
- Density
- Particle size distribution (Granulometry)
- Vapour pressure
- Partition coefficient
- Water solubility
- Solubility in organic solvents / fat solubility
- Surface tension
- Flash point
- Auto flammability
- Flammability
- Explosiveness
- Oxidising properties
- Oxidation reduction potential
- Stability in organic solvents and identity of relevant degradation products
- Storage stability and reactivity towards container material
- Stability: thermal, sunlight, metals
- pH
- Dissociation constant
- Viscosity
- Additional physico-chemical information
- Additional physico-chemical properties of nanomaterials
- Nanomaterial agglomeration / aggregation
- Nanomaterial crystalline phase
- Nanomaterial crystallite and grain size
- Nanomaterial aspect ratio / shape
- Nanomaterial specific surface area
- Nanomaterial Zeta potential
- Nanomaterial surface chemistry
- Nanomaterial dustiness
- Nanomaterial porosity
- Nanomaterial pour density
- Nanomaterial photocatalytic activity
- Nanomaterial radical formation potential
- Nanomaterial catalytic activity
- Endpoint summary
- Stability
- Biodegradation
- Bioaccumulation
- Transport and distribution
- Environmental data
- Additional information on environmental fate and behaviour
- Ecotoxicological Summary
- Aquatic toxicity
- Endpoint summary
- Short-term toxicity to fish
- Long-term toxicity to fish
- Short-term toxicity to aquatic invertebrates
- Long-term toxicity to aquatic invertebrates
- Toxicity to aquatic algae and cyanobacteria
- Toxicity to aquatic plants other than algae
- Toxicity to microorganisms
- Endocrine disrupter testing in aquatic vertebrates – in vivo
- Toxicity to other aquatic organisms
- Sediment toxicity
- Terrestrial toxicity
- Biological effects monitoring
- Biotransformation and kinetics
- Additional ecotoxological information
- Toxicological Summary
- Toxicokinetics, metabolism and distribution
- Acute Toxicity
- Irritation / corrosion
- Sensitisation
- Repeated dose toxicity
- Genetic toxicity
- Carcinogenicity
- Toxicity to reproduction
- Specific investigations
- Exposure related observations in humans
- Toxic effects on livestock and pets
- Additional toxicological data
Endpoint summary
Administrative data
Description of key information
Skin irritation:
The dermal irritation potential of 4-chloro-1-methylpiperidine (CAS No: 5570-77-4) was estimated using OECD QSAR toolbox version 3.3 with logPow as the primary descriptor. The substance 4-chloro-1-methylpiperidine (CAS No: 5570-77-4) is estimated to be severely irritating to the skin of rabbits. Based on the estimated result N 4-chloro-1-methylpiperidine (CAS No: 5570-77-4) can be considered as severely irritating to skin and can be classified under the category “Category 1 (corrosive)” as per CLP regulation.
Eye irritation:
The ocular irritation potential of 4-chloro-1-methylpiperidine (CAS No: 5570-77-4) was estimated using OECD QSAR toolbox version 3.3 with logPow as the primary descriptor. The substance 4-chloro-1-methylpiperidine (CAS No: 5570-77-4) is estimated to be severely irritating to the eye of rabbits. Based on the estimated result N 4-chloro-1-methylpiperidine (CAS No: 5570-77-4) can be considered as severely irritating to eye and can be classified under the category “Category 2” as per CLP regulation.
Key value for chemical safety assessment
Skin irritation / corrosion
Link to relevant study records
- Endpoint:
- skin irritation: in vivo
- Type of information:
- (Q)SAR
- Adequacy of study:
- weight of evidence
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- results derived from a valid (Q)SAR model and falling into its applicability domain, with limited documentation / justification
- Justification for type of information:
- Data is from OECD QSAR toolbox version 3.3 and QMRF report has been attached.
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- other: Estimated data
- Principles of method if other than guideline:
- Prediction is done using QSAR Toolbox version 3.3
- GLP compliance:
- not specified
- Specific details on test material used for the study:
- - Name of test material: 4-chloro-1-methylpiperidine
- Molecular formula: C6H12ClN
- Molecular weight: 133.621 g/mol
- Smiles notation: N1(CCC(CC1)Cl)C
- InChl: 1S/C6H12ClN/c1-8-4-2-6(7)3-5-8/h6H,2-5H2,1H3
- Substance type: Organic
- Physical state: Liquid - Species:
- rabbit
- Strain:
- not specified
- Details on test animals or test system and environmental conditions:
- No data available
- Type of coverage:
- occlusive
- Preparation of test site:
- shaved
- Vehicle:
- not specified
- Controls:
- not specified
- Amount / concentration applied:
- No data available
- Duration of treatment / exposure:
- 8 days
- Observation period:
- 8 days
- Number of animals:
- No data available
- Details on study design:
- No data available
- Irritation parameter:
- overall irritation score
- Basis:
- mean
- Time point:
- other: 8 d
- Reversibility:
- not specified
- Remarks on result:
- positive indication of irritation
- Irritant / corrosive response data:
- skin irritating effects were observed.
- Interpretation of results:
- Category 1 (corrosive) based on GHS criteria
- Conclusions:
- The substance 4-chloro-1-methylpiperidine (CAS No: 5570-77-4) is estimated to be severely irritating to the skin of rabbits. Based on the estimated result N 4-chloro-1-methylpiperidine (CAS No: 5570-77-4) can be considered as severely irritating to skin and can be classified under the category “Category 1 (corrosive)” as per CLP regulation.
- Executive summary:
The dermal irritation potential of 4-chloro-1-methylpiperidine (CAS No: 5570-77-4) was estimated using OECD QSAR toolbox version 3.3 with logPow as the primary descriptor. The substance 4-chloro-1-methylpiperidine (CAS No: 5570-77-4) is estimated to be severely irritating to the skin of rabbits. Based on the estimated result N 4-chloro-1-methylpiperidine (CAS No: 5570-77-4) can be considered as severely irritating to skin and can be classified under the category “Category 1 (corrosive)” as per CLP regulation.
Reference
Estimation
method: Takes mode value from the 5 nearest neighbours
Domain logical expression:Result: In Domain
(((((((("a"
or "b" or "c" or "d" )
and ("e"
and (
not "f")
)
)
and "g" )
and "h" )
and ("i"
and (
not "j")
)
)
and "k" )
and ("l"
and (
not "m")
)
)
and ("n"
and "o" )
)
Domain
logical expression index: "a"
Referential
boundary: The
target chemical should be classified as Aliphatic Amines by US-EPA New
Chemical Categories
Domain
logical expression index: "b"
Referential
boundary: The
target chemical should be classified as SN1 OR SN1 >> Iminium Ion
Formation OR SN1 >> Iminium Ion Formation >> Aliphatic tertiary amines
OR SN2 OR SN2 >> SN2 at an sp3 Carbon atom OR SN2 >> SN2 at an sp3
Carbon atom >> Aliphatic halides by DNA binding by OECD ONLY
Domain
logical expression index: "c"
Referential
boundary: The
target chemical should be classified as SN2 OR SN2 >> Nucleophilic
substitution at sp3 carbon atom OR SN2 >> Nucleophilic substitution at
sp3 carbon atom >> Alkyl halides by Protein binding by OASIS v1.3 ONLY
Domain
logical expression index: "d"
Referential
boundary: The
target chemical should be classified as SN2 OR SN2 >> SN2 reaction at
sp3 carbon atom OR SN2 >> SN2 reaction at sp3 carbon atom >> Alkyl
halides by Protein binding by OECD ONLY
Domain
logical expression index: "e"
Referential
boundary: The
target chemical should be classified as Non binder, without OH or NH2
group by Estrogen Receptor Binding
Domain
logical expression index: "f"
Referential
boundary: The
target chemical should be classified as Moderate binder, NH2 group OR
Moderate binder, OH grooup OR Non binder, impaired OH or NH2 group OR
Non binder, MW>500 OR Non binder, non cyclic structure OR Strong binder,
NH2 group OR Strong binder, OH group OR Weak binder, NH2 group OR Weak
binder, OH group by Estrogen Receptor Binding
Domain
logical expression index: "g"
Referential
boundary: The
target chemical should be classified as No superfragment by
Superfragments ONLY
Domain
logical expression index: "h"
Referential
boundary: The
target chemical should be classified as Narcotic Amine by Acute aquatic
toxicity MOA by OASIS ONLY
Domain
logical expression index: "i"
Referential
boundary: The
target chemical should be classified as Inclusion rules not met by Skin
irritation/corrosion Inclusion rules by BfR
Domain
logical expression index: "j"
Referential
boundary: The
target chemical should be classified as Primary and secondary aliphatic
amines by Skin irritation/corrosion Inclusion rules by BfR
Domain
logical expression index: "k"
Referential
boundary: The
target chemical should be classified as Bioavailable by Lipinski Rule
Oasis ONLY
Domain
logical expression index: "l"
Referential
boundary: The
target chemical should be classified as Alkyl chloride AND Alkyl halide
AND Amine AND Halogen derivative AND Heterocyclic compound AND Tertiary
aliphatic amine AND Tertiary amine by Organic functional groups, Norbert
Haider (checkmol)
Domain
logical expression index: "m"
Referential
boundary: The
target chemical should be classified as Aromatic compound OR Aryl
chloride OR Aryl halide OR Primary aliphatic amine OR Primary amine OR
Secondary aliphatic amine OR Secondary amine by Organic functional
groups, Norbert Haider (checkmol)
Domain
logical expression index: "n"
Parametric
boundary:The
target chemical should have a value of log Kow which is >= -0.382
Domain
logical expression index: "o"
Parametric
boundary:The
target chemical should have a value of log Kow which is <= 1.89
Endpoint conclusion
- Endpoint conclusion:
- adverse effect observed (corrosive)
Eye irritation
Link to relevant study records
- Endpoint:
- eye irritation: in vivo
- Type of information:
- (Q)SAR
- Adequacy of study:
- weight of evidence
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- results derived from a valid (Q)SAR model and falling into its applicability domain, with limited documentation / justification
- Justification for type of information:
- Data is from OECD QSAR toolbox version 3.3 and QMRF report has been attached.
- Qualifier:
- according to guideline
- Guideline:
- other: estimated data
- Principles of method if other than guideline:
- Prediction is done using QSAR Toolbox version 3.3
- GLP compliance:
- not specified
- Specific details on test material used for the study:
- - Name of test material: 4-chloro-1-methylpiperidine
- Molecular formula: C6H12ClN
- Molecular weight: 133.621 g/mol
- Smiles notation: N1(CCC(CC1)Cl)C
- InChl: 1S/C6H12ClN/c1-8-4-2-6(7)3-5-8/h6H,2-5H2,1H3
- Substance type: Organic
- Physical state: Liquid - Species:
- rabbit
- Strain:
- not specified
- Details on test animals or tissues and environmental conditions:
- No data available
- Vehicle:
- not specified
- Controls:
- not specified
- Amount / concentration applied:
- No data available
- Duration of treatment / exposure:
- No data available
- Observation period (in vivo):
- No data available
- Duration of post- treatment incubation (in vitro):
- No data available
- Number of animals or in vitro replicates:
- No data available
- Details on study design:
- No data available
- Irritation parameter:
- overall irritation score
- Basis:
- mean
- Reversibility:
- not specified
- Remarks on result:
- positive indication of irritation
- Irritant / corrosive response data:
- Eye irritating effects were observed in treated animals.
- Interpretation of results:
- Category 2 (irritating to eyes) based on GHS criteria
- Conclusions:
- The substance 4-chloro-1-methylpiperidine (CAS No: 5570-77-4) is estimated to be severely irritating to the eye of rabbits. Based on the estimated result N 4-chloro-1-methylpiperidine (CAS No: 5570-77-4) can be considered as severely irritating to eye and can be classified under the category “Category 2” as per CLP regulation.
- Executive summary:
The ocular irritation potential of 4-chloro-1-methylpiperidine (CAS No: 5570-77-4) was estimated using OECD QSAR toolbox version 3.3 with logPow as the primary descriptor. The substance 4-chloro-1-methylpiperidine (CAS No: 5570-77-4) is estimated to be severely irritating to the eye of rabbits. Based on the estimated result N 4-chloro-1-methylpiperidine (CAS No: 5570-77-4) can be considered as severely irritating to eye and can be classified under the category “Category 2” as per CLP regulation.
Reference
Estimation
method: Takes mode value from the 5 nearest neighbours
Domain logical expression:Result: In Domain
((((((((((("a"
or "b" or "c" or "d" )
and ("e"
and (
not "f")
)
)
and ("g"
and (
not "h")
)
)
and "i" )
and ("j"
and (
not "k")
)
)
and ("l"
and (
not "m")
)
)
and ("n"
and (
not "o")
)
)
and ("p"
and (
not "q")
)
)
and "r" )
and "s" )
and ("t"
and "u" )
)
Domain
logical expression index: "a"
Referential
boundary: The
target chemical should be classified as Aliphatic Amines by US-EPA New
Chemical Categories
Domain
logical expression index: "b"
Referential
boundary: The
target chemical should be classified as SN2 AND SN2 >> Nucleophilic
substitution at sp3 carbon atom AND SN2 >> Nucleophilic substitution at
sp3 carbon atom >> Alkyl halides by Protein binding by OASIS v1.3
Domain
logical expression index: "c"
Referential
boundary: The
target chemical should be classified as SN2 AND SN2 >> SN2 reaction at
sp3 carbon atom AND SN2 >> SN2 reaction at sp3 carbon atom >> Alkyl
halides by Protein binding by OECD
Domain
logical expression index: "d"
Referential
boundary: The
target chemical should be classified as SN1 AND SN1 >> Iminium Ion
Formation AND SN1 >> Iminium Ion Formation >> Aliphatic tertiary amines
AND SN2 AND SN2 >> SN2 at an sp3 Carbon atom AND SN2 >> SN2 at an sp3
Carbon atom >> Aliphatic halides by DNA binding by OECD
Domain
logical expression index: "e"
Referential
boundary: The
target chemical should be classified as No alert found by DNA binding by
OASIS v.1.3
Domain
logical expression index: "f"
Referential
boundary: The
target chemical should be classified as AN2 OR AN2 >> Carbamoylation
after isocyanate formation OR AN2 >> Carbamoylation after isocyanate
formation >> N-Hydroxylamines OR AN2 >> Schiff base formation by
aldehyde formed after metabolic activation OR AN2 >> Schiff base
formation by aldehyde formed after metabolic activation >> Geminal
Polyhaloalkane Derivatives OR AN2 >> Shiff base formation after aldehyde
release OR AN2 >> Shiff base formation after aldehyde release >>
Specific Acetate Esters OR AN2 >> Shiff base formation for aldehydes OR
AN2 >> Shiff base formation for aldehydes >> Geminal Polyhaloalkane
Derivatives OR AN2 >> Shiff base formation for aldehydes >> Haloalkane
Derivatives with Labile Halogen OR Radical OR Radical >> Generation of
reactive oxygen species OR Radical >> Generation of reactive oxygen
species >> Thiols OR Radical >> Generation of ROS by glutathione
depletion (indirect) OR Radical >> Generation of ROS by glutathione
depletion (indirect) >> Haloalkanes Containing Heteroatom OR Radical >>
Radical mechanism via ROS formation (indirect) OR Radical >> Radical
mechanism via ROS formation (indirect) >> Geminal Polyhaloalkane
Derivatives OR Radical >> Radical mechanism via ROS formation (indirect)
>> Haloalcohols OR Radical >> Radical mechanism via ROS formation
(indirect) >> N-Hydroxylamines OR SN1 OR SN1 >> Carbenium ion formation
OR SN1 >> Carbenium ion formation >> Alpha-Haloethers OR SN1 >>
Nucleophilic attack after carbenium ion formation OR SN1 >> Nucleophilic
attack after carbenium ion formation >> Specific Acetate Esters OR SN1
>> Nucleophilic attack after metabolic nitrenium ion formation OR SN1 >>
Nucleophilic attack after metabolic nitrenium ion formation >>
N-Hydroxylamines OR SN2 OR SN2 >> Acylation OR SN2 >> Acylation >>
Specific Acetate Esters OR SN2 >> Acylation involving a leaving group
OR SN2 >> Acylation involving a leaving group >> Geminal
Polyhaloalkane Derivatives OR SN2 >> Acylation involving a leaving group
>> Haloalkane Derivatives with Labile Halogen OR SN2 >> Acylation
involving a leaving group after metabolic activation OR SN2 >> Acylation
involving a leaving group after metabolic activation >> Geminal
Polyhaloalkane Derivatives OR SN2 >> Alkylation by epoxide metabolically
formed after E2 reaction OR SN2 >> Alkylation by epoxide metabolically
formed after E2 reaction >> Haloalcohols OR SN2 >> Alkylation by epoxide
metabolically formed after E2 reaction >> Monohaloalkanes OR SN2 >>
Alkylation, direct acting epoxides and related OR SN2 >> Alkylation,
direct acting epoxides and related >> Epoxides and Aziridines OR SN2 >>
Alkylation, direct acting epoxides and related after cyclization OR SN2
>> Alkylation, direct acting epoxides and related after cyclization >>
Nitrogen Mustards OR SN2 >> Alkylation, nucleophilic substitution at
sp3-carbon atom OR SN2 >> Alkylation, nucleophilic substitution at
sp3-carbon atom >> Haloalkane Derivatives with Labile Halogen OR SN2 >>
Alkylation, nucleophilic substitution at sp3-carbon atom >>
Monohaloalkanes OR SN2 >> Direct acylation involving a leaving group OR
SN2 >> Direct acylation involving a leaving group >> Acyl Halides OR SN2
>> DNA alkylation OR SN2 >> DNA alkylation >> Alkylphosphates,
Alkylthiophosphates and Alkylphosphonates OR SN2 >> DNA alkylation >>
Vicinal Dihaloalkanes OR SN2 >> Internal SN2 reaction with aziridinium
and/or cyclic sulfonium ion formation (enzymatic) OR SN2 >> Internal SN2
reaction with aziridinium and/or cyclic sulfonium ion formation
(enzymatic) >> Vicinal Dihaloalkanes OR SN2 >> Nucleophilic substitution
after carbenium ion formation OR SN2 >> Nucleophilic substitution after
carbenium ion formation >> Monohaloalkanes OR SN2 >> Nucleophilic
substitution at sp3 Carbon atom OR SN2 >> Nucleophilic substitution at
sp3 Carbon atom >> Haloalkanes Containing Heteroatom OR SN2 >>
Nucleophilic substitution at sp3 Carbon atom >> Specific Acetate Esters
OR SN2 >> Nucleophilic substitution at sp3 carbon atom after thiol
(glutathione) conjugation OR SN2 >> Nucleophilic substitution at sp3
carbon atom after thiol (glutathione) conjugation >> Geminal
Polyhaloalkane Derivatives OR SN2 >> SN2 at sp3-carbon atom OR SN2 >>
SN2 at sp3-carbon atom >> Alpha-Haloethers by DNA binding by OASIS v.1.3
Domain
logical expression index: "g"
Referential
boundary: The
target chemical should be classified as SN1 AND SN1 >> Iminium Ion
Formation AND SN1 >> Iminium Ion Formation >> Aliphatic tertiary amines
AND SN2 AND SN2 >> SN2 at an sp3 Carbon atom AND SN2 >> SN2 at an sp3
Carbon atom >> Aliphatic halides by DNA binding by OECD
Domain
logical expression index: "h"
Referential
boundary: The
target chemical should be classified as Acylation OR Acylation >> P450
Mediated Activation to Isocyanates or Isothiocyanates OR Acylation >>
P450 Mediated Activation to Isocyanates or Isothiocyanates >>
Benzylamines-Acylation OR Michael addition OR Michael addition >> P450
Mediated Activation of Heterocyclic Ring Systems OR Michael addition >>
P450 Mediated Activation of Heterocyclic Ring Systems >>
Thiophenes-Michael addition OR Michael addition >> P450 Mediated
Activation to Quinones and Quinone-type Chemicals OR Michael addition >>
P450 Mediated Activation to Quinones and Quinone-type Chemicals >> Alkyl
phenols OR Michael addition >> P450 Mediated Activation to Quinones and
Quinone-type Chemicals >> Arenes OR Michael addition >> Polarised
Alkenes-Michael addition OR Michael addition >> Polarised
Alkenes-Michael addition >> Alpha, beta- unsaturated amides OR Michael
addition >> Polarised Alkenes-Michael addition >> Alpha, beta-
unsaturated esters OR No alert found OR Schiff base formers OR Schiff
base formers >> Chemicals Activated by P450 to Glyoxal OR Schiff base
formers >> Chemicals Activated by P450 to Glyoxal >> Ethanolamines
(including morpholine) OR Schiff base formers >> Chemicals Activated by
P450 to Glyoxal >> Ethylenediamines (including piperazine) OR Schiff
base formers >> Chemicals Activated by P450 to Mono-aldehydes OR Schiff
base formers >> Chemicals Activated by P450 to Mono-aldehydes >>
Benzylamines-Schiff base OR SN1 >> Nitrenium Ion formation OR SN1 >>
Nitrenium Ion formation >> Aromatic azo OR SN1 >> Nitrenium Ion
formation >> Aromatic nitro OR SN1 >> Nitrenium Ion formation >> Primary
(unsaturated) heterocyclic amine OR SN1 >> Nitrenium Ion formation >>
Tertiary aromatic amine OR SN2 >> P450 Mediated Epoxidation OR SN2 >>
P450 Mediated Epoxidation >> Thiophenes-SN2 by DNA binding by OECD
Domain
logical expression index: "i"
Referential
boundary: The
target chemical should be classified as Bioavailable by Lipinski Rule
Oasis ONLY
Domain
logical expression index: "j"
Referential
boundary: The
target chemical should be classified as Halogens AND Non-Metals by
Groups of elements
Domain
logical expression index: "k"
Referential
boundary: The
target chemical should be classified as Alkali Earth OR Alkaline Earth
OR Metalloids OR Transition Metals by Groups of elements
Domain
logical expression index: "l"
Referential
boundary: The
target chemical should be classified as Group 14 - Carbon C AND Group 15
- Nitrogen N AND Group 17 - Halogens Cl AND Group 17 - Halogens
F,Cl,Br,I,At by Chemical elements
Domain
logical expression index: "m"
Referential
boundary: The
target chemical should be classified as Group 15 - Phosphorus P OR Group
16 - Oxygen O OR Group 16 - Sulfur S OR Group 17 - Halogens Br by
Chemical elements
Domain
logical expression index: "n"
Referential
boundary: The
target chemical should be classified as Aliphatic Carbon [CH] AND
Aliphatic Carbon [-CH2-] AND Aliphatic Carbon [-CH3] AND Amino,
aliphatic attach [-N<] AND Chlorine, aliphatic attach [-Cl] by Organic
functional groups (US EPA)
Domain
logical expression index: "o"
Referential
boundary: The
target chemical should be classified as Acetylenic Carbon [#C] OR Amino,
aliphatic attach [-NH-] OR Amino, aliphatic attach [-NH2] OR
Amino-ethylcyano [-N-CH-C#N] OR Aromatic Carbon [C] OR Chlorine,
aromatic attach [-Cl] OR Chlorine, olefinic attach [-Cl] OR Cyano,
aliphatic attach [-C#N] OR Olefinic carbon [=CH- or =C<] OR Tertiary
Carbon by Organic functional groups (US EPA)
Domain
logical expression index: "p"
Referential
boundary: The
target chemical should be classified as Alkyl chloride AND Alkyl halide
AND Amine AND Halogen derivative AND Heterocyclic compound AND Tertiary
aliphatic amine AND Tertiary amine by Organic functional groups, Norbert
Haider (checkmol)
Domain
logical expression index: "q"
Referential
boundary: The
target chemical should be classified as Aminal by Organic functional
groups, Norbert Haider (checkmol)
Domain
logical expression index: "r"
Similarity
boundary:Target:
CN1CCC(Cl)CC1
Threshold=10%,
Dice(Atom centered fragments)
Atom type; Count H attached; Hybridization
Domain
logical expression index: "s"
Similarity
boundary:Target:
CN1CCC(Cl)CC1
Threshold=60%,
Dice(Atom centered fragments)
Atom type; Count H attached; Hybridization
Domain
logical expression index: "t"
Parametric
boundary:The
target chemical should have a value of log Kow which is >= 0.949
Domain
logical expression index: "u"
Parametric
boundary:The
target chemical should have a value of log Kow which is <= 2.31
Endpoint conclusion
- Endpoint conclusion:
- adverse effect observed (irritating)
Respiratory irritation
Endpoint conclusion
- Endpoint conclusion:
- no study available
Additional information
Skin irritation:
Various studieshas been investigated for the test chemical4-chloro-1-methylpiperidine (CAS No: 5570-77-4)to observe the potential for dermal irritation to a greater or lesser extent. The studies are based on in vivo experiments in rabbits for target chemical4-chloro-1-methylpiperidine (CAS No: 5570-77-4) and its structurally similar read across substances1-methylpiperazine (CAS No: 109-01-3)and1-ethenylpyrrolidin-2-one (CAS No: 88-12-0).The predicted data using the OECD QSAR toolbox has also been compared with the experimental data and summarized as below;
In a prediction done by SSS (2017) using the OECD QSAR toolbox with log kow as the primary descriptor, the skin irritation potential was estimated for test chemical4-chloro-1-methylpiperidine (CAS No: 5570-77-4).The chemical 4-chloro-1-methylpiperidine (CAS No: 5570-77-4) is estimated to be severely irritating to skin of rabbits.
The above result was supported by experimental study conducted by Henry F. Smyth Jr., Charles P. Carpenter, Carrol S. Well, Urbano C. Pozzani & Jean A. Striegel (1962)on five rabbits’ belly to assess the degree of skin irritation of structurally similar read across substance 1-methylpiperazine (CAS No: 109-01-3). Each rabbits received 0.1mlof undiluted1-methylpiperazineor of solutions in water, propylene glycol, or acetoneon clipped belly skin for 24 hour under uncovered condition.Primary skin irritation on rabbits was recorded in a 10-grade ordinal series and was based upon the severest reaction that developed on the clipped skin of each of five albino rabbits. Grade 1 in indicated no irritation and Grade 2 the least visible capillary injection from the undiluted chemical. Grade 6 indicates necrosis when undiluted and Grade 10 indicates necrosis from a 0.01% solution.The primary skin Irritation score for1-methylpiperazine (CAS No: 109-01-3)was observed to be Grade 6 indicatingNecrosis of skin in treated rabbits. Thusbased on the grade, 1-methylpiperazine (CAS No: 109-01-3)was considered to be irritating to the skin of albino rabbits.
EUROPEAN COMMISSION JOINT RESEARCH CENTRE(2003) reported the skin irritation study of another structurally related read across substance 1-ethenylpyrrolidin-2-one (CAS No: 88-12-0) carried out to the ear of 3 rabbits in an early dermal toxicity study which further supports the above results. In this test, cotton wool plugs soaked in 1-ethenylpyrrolidin-2-one were bound to the ear of 3 rabbitsand were observed for skin reactions after exposure period of 4 , 8 or 16 hours.Transient swellings, which bled profusely, were reported for the rabbit exposed for 4 hours. Exposures of 8 or 16 hours led to swelling and blistering. The animal exposed for 16 hours subsequently died. Skin lesions in the animal exposed for 8 hours formed crusts with egg white-like secretions, which healed after 6 week leaving scarring.Since the chemical induce sever cutaneous reactions, the chemical1-ethenylpyrrolidin-2-one (CAS No: 88-12-0) was considered to be severely irritating to the skin.
Based on the available data for thetarget chemical4-chloro-1-methylpiperidine (CAS No: 5570-77-4) and its structurally similar read across substances1-methylpiperazine (CAS No: 109-01-3)and1-ethenylpyrrolidin-2-one (CAS No: 88-12-0),it can be concluded thatchemical 4-chloro-1-methylpiperidine (CAS No: 5570-77-4) is able to cause severe skin irritation and hence considered as corrosive .Comparing the above annotations with the criteria of CLP regulation, it can be classified under the category“Category 1 (corrosive)”.
Eye irritation:
In different studies,the test chemical4-chloro-1-methylpiperidine (CAS No: 5570-77-4) has been investigated for potential for ocular irritationto a greater or lesser extent. The studies are based on in vivo experiments in rabbits for target chemical4-chloro-1-methylpiperidine (CAS No: 5570-77-4) and its structurally similar read across substances1-methylpiperazine (CAS No: 109-01-3)and1-ethenylpyrrolidin-2-one (CAS No: 88-12-0).The predicted data using the OECD QSAR toolbox has also been compared with the experimental data and summarized as below;
In a prediction done by SSS (2017) using the OECD QSAR toolbox with log kow as the primary descriptor, an eye irritation potential was estimated for test chemical4-chloro-1-methylpiperidine (CAS No: 5570-77-4).The chemical 4-chloro-1-methylpiperidine (CAS No: 5570-77-4) is estimated to be severely irritating to eye of rabbits.
The above result was supported by experimental study conducted by Henry F. Smyth Jr., Charles P. Carpenter, Carrol S. Well, Urbano C. Pozzani & Jean A. Striegel (1962) forstructurally similar read across substance1-methylpiperazine (CAS No: 109-01-3) in rabbits.In this test,eye injury in rabbits was recorded in a 10- grade ordinal series and was based upon the degree of corneal necrosis that results from instillation of various volumes and concentrations of chemical1-methyl piperazine. Grade 1 indicated at most a very small area of necrosis resulting from 0.5 ml of undiluted chemical in the eye. Grade 5 indicated a so-called severe burn from 0.005 ml, and Grade 10 indicated a severe burn from 0.5 ml of a 1% solution in water or propylene glycol.Primary Eye Irritation score for1-methyl piperazinewas observed to be Grade 8. Thusbased on the grade, 1-methylpiperazine (CAS No: 109-01-3)was considered to be severely irritating to eyes.
EUROPEAN COMMISSION JOINT RESEARCH CENTRE(2003) reported the The Draize test of another structurally related read across substance 1-ethenylpyrrolidin-2-one (CAS No: 88-12-0) in six New Zealand white rabbits to determine its eye irritancy potential. About 0.1ml of 1-ethenylpyrrolidin-2-one was installed into the eye of each rabbit and observations were made according to the EU classification and labeling system for scoring eye irritation after 1, 24, 48, 72 hours and 7 days. One hour after application, grade 1redness and grade 1 or 2 chemosis of the conjunctiva and grade 1 iris lesions were recorded for all animals. In addition, one animal showed grade 1 corneal opacity. The conjunctival chemosis grade 2.2, conjunctival redness grade 1.9 and grade 1 iris lesions were observed across the 24-72 hour time points. In addition, corneal opacities of grade 1.8 were observed, which extended over an area of three quarters to the entire cornea. The lesions of the iris and conjunctiva did not show any signs of diminishing up to day 7 and corneal opacities became worse. By day 7, grade 2 (1 rabbit) or grade 3 (5 rabbits) opacities were observed covering an area of half to the entire cornea. Discharge, grade 1 or 2, was also apparent from the eyes of all rabbits at all observation points. Since the ocular lesions were not cleared and becoming more severe with time, the chemical1-ethenylpyrrolidin-2-one (CAS No: 88-12-0) was considered to be severely irritating to the eye of New Zealand white rabbits.
Based on the available data for thetarget chemical4-chloro-1-methylpiperidine (CAS No: 5570-77-4) and its structurally similar read across substances1-methylpiperazine (CAS No: 109-01-3)and1-ethenylpyrrolidin-2-one (CAS No: 88-12-0),it can be concluded thatchemical 4-chloro-1-methylpiperidine (CAS No: 5570-77-4) is able to cause severe eye irritation and hence considered as irritating.Comparing the above annotations with the criteria of CLP regulation, it can be classified under the category“Category 2”.
Justification for classification or non-classification
The skin and eye irritation potential of test chemical4-chloro-1-methylpiperidine (CAS No: 5570-77-4) and its structurally similar read across substances1-methylpiperazine (CAS No: 109-01-3)and1-ethenylpyrrolidin-2-one (CAS No: 88-12-0)were observed in various studies. The results obtained from these studies indicates that the chemical4-chloro-1-methylpiperidine (CAS No: 5570-77-4)is likely to cause severe skin and eye irritation. Hence4-chloro-1-methylpiperidine (CAS No: 5570-77-4)can be classified under the category“Category 1 (corrosive)”for skin and“Category 2”eye as per CLP.
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