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The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
Diss Factsheets
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EC number: 202-216-2 | CAS number: 93-08-3
- 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
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Skin sensitisation
Administrative data
- Endpoint:
- skin sensitisation: in vivo (non-LLNA)
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- data from handbook or collection of data
- Justification for type of information:
- Data is from publication
Data source
Reference
- Reference Type:
- publication
- Title:
- skin sensitization potential of test chemical
- Author:
- D. L. J. Opdyke
- Year:
- 1 975
- Bibliographic source:
- Food and Cosmetics Toxicology,1975
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- other: as mentioned below
- Principles of method if other than guideline:
- To determine skin sensitization potential of test chemical in human using maximization test
- GLP compliance:
- not specified
- Type of study:
- other: Human Maximization test
- Justification for non-LLNA method:
- Currently no LLNA study is available for assessment. The Human Maximization test has been carried out as an animal test to predict human sensitization for over a decade and is recommended by international test guidelines such as OECD
Test material
- Reference substance name:
- 2'-acetonaphthone
- EC Number:
- 202-216-2
- EC Name:
- 2'-acetonaphthone
- Cas Number:
- 93-08-3
- Molecular formula:
- C12H10O
- IUPAC Name:
- 1-(naphthalen-2-yl)ethan-1-one
- Details on test material:
- - Name of test material (as cited in study report): 2'-acetonaphthone
- Substance type: Organic
- Physical state: Solid
Constituent 1
In vivo test system
Test animals
- Species:
- human
- Strain:
- not specified
- Sex:
- not specified
Study design: in vivo (non-LLNA)
Induction
- Route:
- other: no data
- Vehicle:
- petrolatum
- Concentration / amount:
- 2%
- Adequacy of induction:
- other: no skin sensitization reactions
Challenge
- No.:
- #1
- Route:
- other: no data
- Vehicle:
- petrolatum
- Concentration / amount:
- 2 %
- Adequacy of challenge:
- other: no skin sensitization reactions
- No. of animals per dose:
- 25
- Details on study design:
- no data
- Challenge controls:
- no data
- Positive control substance(s):
- not specified
Results and discussion
In vivo (non-LLNA)
Results
- Reading:
- 1st reading
- Group:
- test chemical
- Dose level:
- 2%
- No. with + reactions:
- 0
- Total no. in group:
- 25
- Remarks on result:
- other: no sensitization reactions.
Applicant's summary and conclusion
- Interpretation of results:
- other: not sensitising
- Conclusions:
- Since the test chemical did not cause any known signs of contact sensitization, it was considered as not sensitizing to human skin.
- Executive summary:
Maximization test was performed in 25 human subjects to assess the skin sensitization potential of test chemical. The test chemical was applied dermally to the skin of human volunteers at a dose of 2% in petrolatum. Since the test chemical did not cause any known signs of contact sensitization, it was considered as not sensitizing to human skin.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
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