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Diss Factsheets
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EC number: 202-431-1 | CAS number: 95-55-6
- 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
![](https://poisoncentres.echa.europa.eu/o/diss-blank-theme/images/factsheets/A-REACH/factsheet/print_toxicological-information.png)
Repeated dose toxicity: oral
Administrative data
- Endpoint:
- short-term repeated dose toxicity: oral
- Type of information:
- experimental study
- Adequacy of study:
- supporting study
- Reliability:
- 4 (not assignable)
- Rationale for reliability incl. deficiencies:
- other: secondary source SCCS opinion on o-aminophenol 2010
Data source
Reference
- Reference Type:
- secondary source
- Title:
- Evaluation de la toxicite du produit orthoaminophenol administre chez le rat pendant 1 mois por voie orale
- Author:
- Boutemy C.
- Year:
- 1 989
- Bibliographic source:
- SCCS opinion on o-aminophenol 2010
Materials and methods
Test guideline
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- OECD Guideline 407 (Repeated Dose 28-Day Oral Toxicity Study in Rodents)
- GLP compliance:
- not specified
Test material
- Reference substance name:
- 2-aminophenol
- EC Number:
- 202-431-1
- EC Name:
- 2-aminophenol
- Cas Number:
- 95-55-6
- Molecular formula:
- C6H7NO
- IUPAC Name:
- 2-aminophenol
Constituent 1
Test animals
- Species:
- rat
- Strain:
- Sprague-Dawley
- Sex:
- male/female
- Details on test animals or test system and environmental conditions:
- The age of the animals at the start of the study was approximately 6 weeks and the body weight range was 164 – 186 g for males and 134 –169 g for females. Food and water was supplied ad libitum
Administration / exposure
- Route of administration:
- oral: gavage
- Vehicle:
- other: hydrogel of 0.2 g polysorbate 80 and 0.2 g sodium carboxymethylcellulose
- Duration of treatment / exposure:
- 30d
- Frequency of treatment:
- daily
Doses / concentrations
- Remarks:
- Doses / Concentrations:
0 (group I), 20 (group II), 80 (group III) and 320 (group IV) mg/kg bw/d
Basis:
actual ingested
- No. of animals per sex per dose:
- 10
- Control animals:
- yes, concurrent vehicle
Examinations
- Observations and examinations performed and frequency:
- Clinical observation and mortality was checked daily.
Ophthalmoscopic examination was performed before and at the end of the study.
Body weights, food and water consumption were recorded twice weekly.
Haematology and blood biochemistry were determined at the end of the study.
Urinalysis was performed at the end of the study.
Necropsy, main organ weights, histopathological examination were undertaken at sacrifice time
Results and discussion
Results of examinations
- Details on results:
- Orange discoloration of the urines was observed throughout the study groups III and IV and orange discoloration of the fur in group IV females from day 7 on.
Signs of regenerative macrocytic anaemia in group IV males and females were seen.
Increase of GOT activity in group IV (males and females) and group III (males) was registered.
Increase of blood urea nitrogen was observed in group IV females as well as an increase of urinary proteins in group IV males and females.
Renal cells were seen in the urine in males of group II.
Increased relative liver and kidney weights in group IV males and females were recorded.
Kidneys were pale or mottled at macroscopic examination and showed renal tubular lesions at histopathological examination in males of group III and IV. Increased vacuolisation of the urothelium of the bladder in males and females in group II and III was present.
Effect levels
- Dose descriptor:
- NOAEL
- Remarks on result:
- not determinable
- Remarks:
- no NOAEL identified
Target system / organ toxicity
- Critical effects observed:
- not specified
Applicant's summary and conclusion
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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