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EC number: 223-453-8 | CAS number: 3900-45-6
- 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
Toxicity to reproduction
Administrative data
- Endpoint:
- screening for reproductive / developmental toxicity
- Remarks:
- based on test type (migrated information)
- Type of information:
- migrated information: read-across based on grouping of substances (category approach)
- Adequacy of study:
- weight of evidence
- Reliability:
- 2 (reliable with restrictions)
Data source
Reference
- Reference Type:
- other: Predicted data
- Title:
- [R]: 125 mg/kg bw/day (actual dose received); Estimation for NOAEL, NOEL for CAS 3900-45-6
- Author:
- Sustainability Support Service (Europe) AB
- Year:
- 2 014
- Bibliographic source:
- SSS QSAR Prediction Team
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- other: estimated data
- Principles of method if other than guideline:
- Prediction is done using QSAR Toolbox version 3.1
- GLP compliance:
- no
- Limit test:
- no
Test material
- Reference substance name:
- 1-(6-methoxy-2-naphthyl)ethan-1-one
- EC Number:
- 223-453-8
- EC Name:
- 1-(6-methoxy-2-naphthyl)ethan-1-one
- Cas Number:
- 3900-45-6
- Molecular formula:
- C13H12O2
- IUPAC Name:
- 1-(6-methoxynaphthalen-2-yl)ethan-1-one
- Details on test material:
- SMILES:C(C)(=O)c1cc2c(cc(OC)cc2)cc1
Constituent 1
Test animals
- Species:
- rat
- Strain:
- Wistar
- Sex:
- male/female
Administration / exposure
- Route of administration:
- oral: gavage
- Vehicle:
- not specified
- Analytical verification of doses or concentrations:
- not specified
- Duration of treatment / exposure:
- 90 days
Results and discussion
Results: P0 (first parental generation)
Effect levels (P0)
- Dose descriptor:
- NOAEL
- Effect level:
- 125 mg/kg bw/day (actual dose received)
- Based on:
- test mat.
- Sex:
- male/female
- Basis for effect level:
- other: piloerection, vocalization, pushing the bedding and salivation were recorded
- Remarks on result:
- other: not specified
Target system / organ toxicity (P0)
- Critical effects observed:
- not specified
- System:
- other: not specified
- Organ:
- other: not specified
Results: F2 generation
Effect levels (F2)
- Remarks on result:
- not measured/tested
Overall reproductive toxicity
- Reproductive effects observed:
- not specified
- Treatment related:
- not specified
Any other information on results incl. tables
The
prediction was based on dataset comprised from the following
descriptors: NOAEL,NOEL
Estimation method: Takes average value from the 5 nearest neighbours
Domain logical expression:Result: In Domain
((("a"
or "b" or "c" or "d" or "e" )
and "f" )
and ("g"
and "h" )
)
Domain
logical expression index: "a"
Referential
boundary: The
target chemical should be classified as Aryl AND Ether AND Fused
carbocyclic aromatic AND Ketone AND Naphtalene by Organic functional
groups
Domain
logical expression index: "b"
Referential
boundary: The
target chemical should be classified as Ether AND Fused carbocyclic
aromatic AND Ketone AND Naphtalene AND Overlapping groups by Organic
functional groups (nested)
Domain
logical expression index: "c"
Referential
boundary: The
target chemical should be classified as Aliphatic Carbon [CH] AND
Aliphatic Carbon [-CH2-] AND Aliphatic Carbon [-CH3] AND Aromatic Carbon
[C] AND Carbonyl, aliphatic attach [-C(=O)-] AND Carbonyl, olefinic
attach [-C(=O)-] AND Carbonyl, one aromatic attach [-C(=O)-] AND
Miscellaneous sulfide (=S) or oxide (=O) AND Olefinic carbon [=CH- or
=C<] AND Oxygen, one aromatic attach [-O-] by Organic functional groups
(US EPA)
Domain
logical expression index: "d"
Referential
boundary: The
target chemical should be classified as Alkylarylether AND Aromatic
compound AND Carbonyl compound AND Ether AND Ketone by Organic
functional groups, Norbert Haider (checkmol)
Domain
logical expression index: "e"
Similarity
boundary:Target:
C(C)(=O)c1cc2c(cc(OC)cc2)cc1
Threshold=50%,
Dice(Atom centered fragments)
Domain
logical expression index: "f"
Similarity
boundary:Target:
C(C)(=O)c1cc2c(cc(OC)cc2)cc1
Threshold=40%,
Dice(Atom centered fragments)
Domain
logical expression index: "g"
Parametric
boundary:The
target chemical should have a value of log Kow which is >= 2
Domain
logical expression index: "h"
Parametric
boundary:The
target chemical should have a value of log Kow which is <= 3.05
Applicant's summary and conclusion
- Conclusions:
- The NOAEL for 1-(6-methoxy-2-naphthyl)ethan-1-one was estimated to be 375 mg/kg bw/day (actual dose received) for rats for 53 days , this subacute value when converted to subchronic value is equivalent to 125 mg/kg bw/day (actual dose received) for rats for 90 days duration
- Executive summary:
The NOAEL for 1-(6-methoxy-2-naphthyl)ethan-1-one was estimated to be 375 mg/kg bw/day (actual
dose received) for rats for 53days, this subacute value when converted to subchronic value is equivalent to 125 mg/kg bw/day (actual dose received) for rats for 90daysduration using the toolbox version 3.2. The data is estimated to be based on the data summarized below
CAS no.
End point
Value
Species
Doses
Duration
Effects
Remarks
68131-13-5
NOEL
300 mg/kg bw/day (actual
dose received)
rat
100, 300, 750 mg/kg bw/day (actual
dose received)
53 days
piloerection, vocalization, pushing the bedding and salivation were recorded
99-76-3
NOEL
450 mg/kg bw/day (actual
dose received)
rat
40,400,800 mg/kg bw/day (actual
dose received)
3 days
no increase in uterus weights or premature vaginal opening
All the values when equalized to 90 days duration by using conversion factor of 3, the values are summarized as follows
CAS no.
End point
Value
Duration
840-65-3
NOEL
100 mg/kg bw/day (actual
dose received)
90 days
2216-69-5
NOEL
150 mg/kg bw/day (actual
dose received)
90 days
Thus the calculated NOEL of analogues for 90 days for the species rat is within the range of 100-150 mg/kg bw/day (actual dose received). Thus the predicted NOEL value is (calculated to be) 125 mg/kg bw/day (actual dose received) with 90 days for rat (harmonized using assessment factors) falls within the domain using Log Kow as the descriptor and justified to be used as NOEL for further DNEL calculation for the purpose of risk assessment. Also it does not impact the classification of the substance thus the predicted value considered to be acceptable.
Justified to be used as NOEL for the purpose of weight of evidence
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