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EC number: 219-062-7 | CAS number: 2345-26-8
- 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
Key value for chemical safety assessment
Genetic toxicity in vitro
Description of key information
Based on the prediction done using the OECD QSAR toolbox version 3.3 with log kow as the primary descriptor and considering the five closest read across substances, gene mutation was predicted for Geranyl isobutyrate (IUPAC name: 3,7-dimethylocta-2,6-dien-1-yl 2-methylpropanoate). The study assumed the use of Salmonella typhimurium strainsTA 1535, TA 1537, TA 98, TA 100 and TA 102 with S9 metabolic activation system. Geranyl isobutyrate was predicted to not induce gene mutation in Salmonella typhimurium strains TA 1535, TA 1537, TA 98, TA 100 and TA 102 in the presence of S9 metabolic activation system and hence, according to the prediction made, the chemical is not likely to classify as a gene mutant in vitro.
Based on the predicted result it can be concluded that the substance is considered to not toxic as per the criteria mentioned in CLP regulation.
Link to relevant study records
- Endpoint:
- in vitro gene mutation study in bacteria
- Remarks:
- Type of genotoxicity: gene mutation
- 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 the supporting QMRF report has been attached
- Qualifier:
- according to guideline
- Guideline:
- other: Refer below principle
- Principles of method if other than guideline:
- Prediction is from OECD QSAR toolbox version 3.3, 2017
- GLP compliance:
- not specified
- Type of assay:
- bacterial reverse mutation assay
- Specific details on test material used for the study:
- - Name of the test material: Geranyl isobutyrate
- IUPAC name: 3,7-dimethylocta-2,6-dien-1-yl 2-methylpropanoate
- Molecular formula: C14H24O2
- Molecular weight: 224.342 g/mol
- Substance type: Organic
- Smiles: C(OC\C=C(\CC\C=C(/C)C)C)(C(C)C)=O - Target gene:
- Histidine
- Species / strain / cell type:
- S. typhimurium TA 1535, TA 1537, TA 98, TA 100 and TA 102
- Details on mammalian cell type (if applicable):
- Not applicable
- Additional strain / cell type characteristics:
- not specified
- Cytokinesis block (if used):
- No data
- Metabolic activation:
- with
- Metabolic activation system:
- S9 metabolic activation system
- Test concentrations with justification for top dose:
- No data
- Vehicle / solvent:
- No data
- Untreated negative controls:
- not specified
- Negative solvent / vehicle controls:
- not specified
- True negative controls:
- not specified
- Positive controls:
- not specified
- Positive control substance:
- not specified
- Details on test system and experimental conditions:
- No data
- Rationale for test conditions:
- No data
- Evaluation criteria:
- Prediction is done considering a dose dependent increase in the number of revertants/plate
- Statistics:
- No data
- Species / strain:
- S. typhimurium, other: TA 1535, TA 1537, TA 98, TA 100 and TA 102
- Metabolic activation:
- with
- Genotoxicity:
- negative
- Cytotoxicity / choice of top concentrations:
- not specified
- Vehicle controls validity:
- not specified
- Untreated negative controls validity:
- not specified
- Positive controls validity:
- not specified
- Additional information on results:
- No data
- Conclusions:
- Geranyl isobutyrate was predicted to not induce gene mutation in Salmonella typhimurium strains TA 1535, TA 1537, TA 98, TA 100 and TA 102 in the presence of S9 metabolic activation system and hence, according to the prediction made, the chemical is not likely to classify as a gene mutant in vitro.
- Executive summary:
Based on the prediction done using the OECD QSAR toolbox version 3.3 with log kow as the primary descriptor and considering the five closest read across substances, gene mutation was predicted for Geranyl isobutyrate (IUPAC name: 3,7-dimethylocta-2,6-dien-1-yl 2-methylpropanoate). The study assumed the use of Salmonella typhimurium strainsTA 1535, TA 1537, TA 98, TA 100 and TA 102 with S9 metabolic activation system. Geranyl isobutyrate was predicted to not induce gene mutation in Salmonella typhimurium strains TA 1535, TA 1537, TA 98, TA 100 and TA 102 in the presence of S9 metabolic activation system and hence, according to the prediction made, the chemical is not likely to classify as a gene mutant in vitro.
Based on the predicted result it can be concluded that the substance is considered to not toxic as per the criteria mentioned in CLP regulation.
Reference
The
prediction was based on dataset comprised from the following
descriptors: "Gene mutation"
Estimation method: Takes highest mode value from the 5 nearest neighbours
Domain logical expression:Result: In Domain
((((((("a"
or "b" or "c" or "d" or "e" )
and ("f"
and (
not "g")
)
)
and ("h"
and (
not "i")
)
)
and ("j"
and (
not "k")
)
)
and "l" )
and "m" )
and ("n"
and "o" )
)
Domain
logical expression index: "a"
Referential
boundary: The
target chemical should be classified as Esters (Chronic toxicity) by
US-EPA New Chemical Categories
Domain
logical expression index: "b"
Referential
boundary: The
target chemical should be classified as Alkene AND Allyl AND Carboxylic
acid ester AND Isopropyl by Organic Functional groups
Domain
logical expression index: "c"
Referential
boundary: The
target chemical should be classified as Allyl AND Carboxylic acid ester
AND Isopropyl AND Overlapping groups by Organic Functional groups
(nested)
Domain
logical expression index: "d"
Referential
boundary: The
target chemical should be classified as Aliphatic Carbon [CH] AND
Aliphatic Carbon [-CH2-] AND Aliphatic Carbon [-CH3] AND Carbonyl,
aliphatic attach [-C(=O)-] AND Ester, aliphatic attach [-C(=O)O] AND
Miscellaneous sulfide (=S) or oxide (=O) AND Olefinic carbon [=CH- or
=C<] AND Tertiary Carbon by Organic functional groups (US EPA)
Domain
logical expression index: "e"
Referential
boundary: The
target chemical should be classified as Carbonic acid derivative AND
Carboxylic acid derivative AND Carboxylic acid ester by Organic
functional groups, Norbert Haider (checkmol)
Domain
logical expression index: "f"
Referential
boundary: The
target chemical should be classified as No alert found by DNA binding by
OASIS v.1.3
Domain
logical expression index: "g"
Referential
boundary: The
target chemical should be classified as AN2 OR AN2 >> Michael-type
addition, quinoid structures OR AN2 >> Michael-type addition, quinoid
structures >> Flavonoids OR AN2 >> Michael-type addition, quinoid
structures >> Quinones OR AN2 >> Carbamoylation after isocyanate
formation OR AN2 >> Carbamoylation after isocyanate formation >>
N-Hydroxylamines OR AN2 >> Michael-type addition on alpha,
beta-unsaturated carbonyl compounds OR AN2 >> Michael-type addition on
alpha, beta-unsaturated carbonyl compounds >> Four- and Five-Membered
Lactones OR AN2 >> Schiff base formation OR AN2 >> Schiff base formation
>> Dicarbonyl compounds 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 AN2 >> Thioacylation via nucleophilic addition after
cysteine-mediated thioketene formation OR AN2 >> Thioacylation via
nucleophilic addition after cysteine-mediated thioketene formation >>
Haloalkenes with Electron-Withdrawing Groups OR Non-covalent interaction
OR Non-covalent interaction >> DNA intercalation OR Non-covalent
interaction >> DNA intercalation >> Acridone, Thioxanthone, Xanthone and
Phenazine Derivatives OR Non-covalent interaction >> DNA intercalation
>> Coumarins OR Non-covalent interaction >> DNA intercalation >> DNA
Intercalators with Carboxamide Side Chain OR Non-covalent interaction >>
DNA intercalation >> Fused-Ring Nitroaromatics OR Non-covalent
interaction >> DNA intercalation >> Quinones OR Non-specific OR
Non-specific >> Incorporation into DNA/RNA, due to structural analogy
with nucleoside bases OR Non-specific >> Incorporation into DNA/RNA,
due to structural analogy with nucleoside bases >> Specific Imine
and Thione Derivatives OR Radical 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 by ROS formation OR Radical >> Radical
mechanism by ROS formation >> Acridone, Thioxanthone, Xanthone and
Phenazine Derivatives OR Radical >> Radical mechanism by ROS formation
>> Polynitroarenes OR Radical >> Radical mechanism via ROS formation
(indirect) OR Radical >> Radical mechanism via ROS formation (indirect)
>> Conjugated Nitro Compounds OR Radical >> Radical mechanism via ROS
formation (indirect) >> Coumarins OR Radical >> Radical mechanism via
ROS formation (indirect) >> Flavonoids OR Radical >> Radical mechanism
via ROS formation (indirect) >> Fused-Ring Nitroaromatics OR Radical >>
Radical mechanism via ROS formation (indirect) >> Geminal Polyhaloalkane
Derivatives OR Radical >> Radical mechanism via ROS formation (indirect)
>> N-Hydroxylamines OR Radical >> Radical mechanism via ROS formation
(indirect) >> Nitroaniline Derivatives OR Radical >> Radical mechanism
via ROS formation (indirect) >> p-Aminobiphenyl Analogs OR Radical >>
Radical mechanism via ROS formation (indirect) >> p-Substituted
Mononitrobenzenes OR Radical >> Radical mechanism via ROS formation
(indirect) >> Quinones OR Radical >> Radical mechanism via ROS formation
(indirect) >> Specific Imine and Thione Derivatives OR SN1 OR SN1 >>
Alkylation after metabolically formed carbenium ion species OR SN1 >>
Alkylation after metabolically formed carbenium ion species >>
Polycyclic Aromatic Hydrocarbon Derivatives OR SN1 >> Nucleophilic
attack after carbenium ion formation OR SN1 >> Nucleophilic attack after
carbenium ion formation >> N-Nitroso Compounds OR SN1 >> Nucleophilic
attack after carbenium ion formation >> Pyrrolizidine Derivatives 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 SN1 >> Nucleophilic attack after
metabolic nitrenium ion formation >> p-Aminobiphenyl Analogs OR SN1 >>
Nucleophilic attack after nitrenium and/or carbenium ion formation OR
SN1 >> Nucleophilic attack after nitrenium and/or carbenium ion
formation >> N-Nitroso Compounds OR SN1 >> Nucleophilic attack after
reduction and nitrenium ion formation OR SN1 >> Nucleophilic attack
after reduction and nitrenium ion formation >> Conjugated Nitro
Compounds OR SN1 >> Nucleophilic attack after reduction and nitrenium
ion formation >> Fused-Ring Nitroaromatics OR SN1 >> Nucleophilic attack
after reduction and nitrenium ion formation >> Nitroaniline Derivatives
OR SN1 >> Nucleophilic attack after reduction and nitrenium ion
formation >> Nitrobiphenyls and Bridged Nitrobiphenyls OR SN1 >>
Nucleophilic attack after reduction and nitrenium ion formation >>
Polynitroarenes OR SN1 >> Nucleophilic attack after reduction and
nitrenium ion formation >> p-Substituted Mononitrobenzenes OR SN1 >>
Nucleophilic substitution on diazonium ions OR SN1 >> Nucleophilic
substitution on diazonium ions >> Specific Imine and Thione Derivatives
OR SN1 >> SN1 reaction at nitrogen-atom bound to a good leaving group or
on nitrenium ion OR SN1 >> SN1 reaction at nitrogen-atom bound to a
good leaving group or on nitrenium ion >> N-Acyloxy(Alkoxy) Arenamides
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, 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,
direct acting epoxides and related after P450-mediated metabolic
activation OR SN2 >> Alkylation, direct acting epoxides and related
after P450-mediated metabolic activation >> Haloalkenes with
Electron-Withdrawing Groups OR SN2 >> Alkylation, direct acting epoxides
and related after P450-mediated metabolic activation >> Polycyclic
Aromatic Hydrocarbon Derivatives 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, ring opening SN2 reaction OR SN2 >>
Alkylation, ring opening SN2 reaction >> Four- and Five-Membered
Lactones OR SN2 >> Direct acting epoxides formed after metabolic
activation OR SN2 >> Direct acting epoxides formed after metabolic
activation >> Coumarins OR SN2 >> Direct acting epoxides formed after
metabolic activation >> Quinoline Derivatives 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 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 an
activated carbon atom OR SN2 >> SN2 at an activated carbon atom >>
Quinoline Derivatives OR SN2 >> SN2 at Nitrogen Atom OR SN2 >> SN2 at
Nitrogen Atom >> N-acetoxyamines OR SN2 >> SN2 reaction at nitrogen-atom
bound to a good leaving group OR SN2 >> SN2 reaction at nitrogen-atom
bound to a good leaving group >> N-Acetoxyamines OR SN2 >> SN2 reaction
at nitrogen-atom bound to a good leaving group or nitrenium ion OR SN2
>> SN2 reaction at nitrogen-atom bound to a good leaving group or
nitrenium ion >> N-Acyloxy(Alkoxy) Arenamides by DNA binding by OASIS
v.1.3
Domain
logical expression index: "h"
Referential
boundary: The
target chemical should be classified as No alert found by DNA binding by
OECD
Domain
logical expression index: "i"
Referential
boundary: The
target chemical should be classified as Acylation OR Acylation >>
Isocyanates and Isothiocyanates OR Acylation >> Isocyanates and
Isothiocyanates >> Isothiocyanates OR Acylation >> P450 Mediated
Activation to Isocyanates or Isothiocyanates OR Acylation >> P450
Mediated Activation to Isocyanates or Isothiocyanates >>
Benzylamines-Acylation OR Acylation >> P450 Mediated Activation to
Isocyanates or Isothiocyanates >> Formamides OR Michael addition OR
Michael addition >> P450 Mediated Activation of Heterocyclic Ring
Systems OR Michael addition >> P450 Mediated Activation of Heterocyclic
Ring Systems >> Furans 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 >> P450 Mediated
Activation to Quinones and Quinone-type Chemicals >> Hydroquinones OR
Michael addition >> P450 Mediated Activation to Quinones and
Quinone-type Chemicals >> Methylenedioxyphenyl OR Michael addition >>
Polarised Alkenes-Michael addition OR Michael addition >> Polarised
Alkenes-Michael addition >> Alpha, beta- unsaturated aldehydes OR
Michael addition >> Polarised Alkenes-Michael addition >> Alpha, beta-
unsaturated esters OR Michael addition >> Polarised Alkenes-Michael
addition >> Alpha, beta- unsaturated ketones OR Schiff base formers OR
Schiff base formers >> Direct Acting Schiff Base Formers OR Schiff base
formers >> Direct Acting Schiff Base Formers >> Mono aldehydes OR SN1 OR
SN1 >> Carbenium Ion Formation OR SN1 >> Carbenium Ion Formation >>
Allyl benzenes OR SN1 >> Iminium Ion Formation OR SN1 >> Iminium Ion
Formation >> Aliphatic tertiary amines OR SN1 >> Nitrenium Ion formation
OR SN1 >> Nitrenium Ion formation >> Aromatic nitro OR SN1 >> Nitrenium
Ion formation >> Primary (unsaturated) heterocyclic amine OR SN1 >>
Nitrenium Ion formation >> Primary aromatic amine OR SN1 >> Nitrenium
Ion formation >> Secondary aromatic amine OR SN1 >> Nitrenium Ion
formation >> Tertiary aromatic amine 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
Domain
logical expression index: "j"
Referential
boundary: The
target chemical should be classified as Non binder, non cyclic structure
by Estrogen Receptor Binding
Domain
logical expression index: "k"
Referential
boundary: The
target chemical should be classified as Moderate binder, OH grooup OR
Non binder, impaired OH or NH2 group OR Non binder, MW>500 OR Non
binder, without OH or NH2 group OR Strong binder, OH group OR Very
strong binder, OH group OR Weak binder, OH group by Estrogen Receptor
Binding
Domain
logical expression index: "l"
Referential
boundary: The
target chemical should be classified as Not bioavailable by Lipinski
Rule Oasis ONLY
Domain
logical expression index: "m"
Similarity
boundary:Target:
CC(C)C(=O)OCC=C(C)CCC=C(C)C
Threshold=30%,
Dice(Atom centered fragments)
Atom type; Count H attached; Hybridization
Domain
logical expression index: "n"
Parametric
boundary:The
target chemical should have a value of log Kow which is >= 5.28
Domain
logical expression index: "o"
Parametric
boundary:The
target chemical should have a value of log Kow which is <= 6.62
Endpoint conclusion
- Endpoint conclusion:
- no adverse effect observed (negative)
Genetic toxicity in vivo
Endpoint conclusion
- Endpoint conclusion:
- no study available
Additional information
Gene mutation in vitro:
Prediction model based estimation for the target chemical and data from read across chemicals was reviewed to determine the mutagenic nature of Geranyl isobutyrate. The studies are as mentioned below:
Based on the prediction done using the OECD QSAR toolbox version 3.3 with log kow as the primary descriptor and considering the five closest read across substances, gene mutation was predicted for Geranyl isobutyrate (IUPAC name: 3,7-dimethylocta-2,6-dien-1-yl 2-methylpropanoate). The study assumed the use of Salmonella typhimurium strains TA 1535, TA 1537, TA 98, TA 100 and TA 102 with and without S9 metabolic activation system. Geranyl isobutyrate was predicted to not induce gene mutation in Salmonella typhimurium strains TA 1535, TA 1537, TA 98, TA 100 and TA 102 in the presence and absence of S9 metabolic activation system and hence, according to the prediction made, the chemical is not likely to classify as a gene mutant in vitro.
Gene mutation toxicity was predicted for Geranyl isobutyrate using the battery approach from Danish QSAR database (2017). The study assumed the use of Salmonella typhimurium bacteria in the Ames test. The end point for gene mutation has been modeled in the Danish QSAR using the three software systems Leadscope, CASE Ultra and SciQSAR. Based on predictions from these three systems, a fourth and overall battery prediction is made. The battery prediction is made using the so called Battery algorithm. With the battery approach it is in many cases possible to reduce “noise” from the individual model estimates and thereby improve accuracy and/or broaden the applicability domain. Gene mutation toxicity study as predicted by Danish QSAR for geranyl isobutyrate is negative and hence the chemical is predicted to not classify as a gene mutant in vitro.
In a study for 80 -90% structurally similar read across chemical, Gene mutation toxicity study was performed for geranyl acetate (RA CAS no 105 -87 -3; IUPAC name: 3,7-dimethylocta-2,6-dien-1-yl acetate) to evaluate its mutagenic nature. The study was performed as per the preincubation protocol using Salmonella typhimurium strain TA100, TA1535, TA1537, TA98 both in the presence and absence of S9 metabolic activation system at doses of 0, 1, 3, 10, 33, 100, 333, 1000, 3333 µg/plate. DMSO was used at the vehicle. The plates were incubated for 48 hrs after 20 mins preincubation before the evaluation of the revertant colonies could be made. Geranyl acetate did notinduce mutation in the Salmonella typhimurium strain TA100, TA1535, TA1537, TA98 both in the presence and absence of S9 metabolic activation system and hence the chemical is not likely to classify as a gene mutant in vitro.
In a study for another structurally and functionally similar read across chemical (J-check, 2017), Ames mutagenicity test was conducted for Sodium 1-methoxy-1-oxohexadecane-2-sulfonate (RA CAS no 4016 -24 -4; IUPAC name: sodium 1-methoxy-1-oxohexadecane- 2-sulfonate) to evaluate its genetoxic effects when exposed to Salmonella typhimurium TA 98, TA 100, TA 1535, TA 1537 and E. coli WP 2 uvr A in preincubation assay. Based on the preliminary study conducted, the test compound was used at dose concentration of 0, 0.625, 1.25, 2.5, 3.13, 5, 6.25, 10, 12.5, 20, 25, 50, 100, 156, 313, 625, 1250, 2500 or 5000 µg/plate. The plates were preincubated for 20 mins and then exposure incubation was for 48 h at 37 °C. Appropriate concurrent solvent and positive controls, were tested in duplicate with three plates / dose on each tester strain without metabolic activation and also with activation. The case where the number of reversed mutant colonies (average value) in the test substance treated plate was more than twice the solvent control value and the dose dependence and the reproducibility of the result were observed was considered positive. Sodium 1-methoxy-1-oxohexadecane-2-sulfonate did not induce mutation in the Salmonella typhimuriumTA 98, TA 100, TA 1535, TA 1537 and E. coli WP 2 uvr A both in the presence and absence of S9 activation system and hence the chemical is not likely to be a gene mutant.
Based on the data available for the target chemical and its read across, Geranyl isobutyrate does not exhibit gene mutation in vitro. Hence the test chemical is not likely to classify as a gene mutant in vitro.
Justification for classification or non-classification
Based on the data available for the target chemical and its read across, Geranyl isobutyrate (CAS no 2345 -26 -2) does not exhibit gene mutation in vitro. Hence the test chemical is not likely to classify as a gene mutant in vitro.
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