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EC number: 202-000-8 | CAS number: 90-51-7
- 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

Acute Toxicity: oral
Administrative data
- Endpoint:
- acute toxicity: oral
- 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
Referenceopen allclose all
- Reference Type:
- publication
- Title:
- Toxicity of test material
- Author:
- Greim et al.
- Year:
- 1 994
- Bibliographic source:
- Chemosphere
- Reference Type:
- other: Authoritative database
- Title:
- Toxicity of test chemical
- Author:
- IFA GESTIS
- Year:
- 2 018
- Bibliographic source:
- GESTIS Substance Database
- Reference Type:
- other: Secondary source
- Title:
- Acute oral toxicity of test chemical
- Author:
- BG Chemie
- Year:
- 2 000
- Bibliographic source:
- BG Chemie
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- other: As mentioned below
- Principles of method if other than guideline:
- Acute oral toxicity of the given test chemical in rat.
- GLP compliance:
- not specified
- Test type:
- other: not specified
- Limit test:
- no
Test material
- Reference substance name:
- 6-amino-4-hydroxynaphthalene-2-sulphonic acid
- EC Number:
- 202-000-8
- EC Name:
- 6-amino-4-hydroxynaphthalene-2-sulphonic acid
- Cas Number:
- 90-51-7
- Molecular formula:
- C10H9NO4S
- IUPAC Name:
- 6-amino-4-hydroxynaphthalene-2-sulphonic acid
- Details on test material:
- - IUPAC Name: 6-amino-4-hydroxynaphthalene-2-sulphonic acid
- Common Name: Gamma acid
- InChI: 1S/C10H9NO4S/c11-7-2-1-6-3-8(16(13,14)15)5-10(12)9(6)4-7/h1-5,12H,11H2,(H,13,14,15)
- Smiles: c12c(c(cc(c1)S(O)(=O)=O)O)cc(N)cc2
- Molecular formula :C10H9NO4S
- Molecular weight :239.25 g/mol
- Substance type:Organic
- Physical state:Solid, powder dark brown
Constituent 1
Test animals
- Species:
- rat
- Strain:
- Wistar
- Sex:
- male
- Details on test animals or test system and environmental conditions:
- not specified
Administration / exposure
- Route of administration:
- oral: unspecified
- Vehicle:
- water
- Details on oral exposure:
- not specified
- Doses:
- 5000 mg/kg bw
- No. of animals per sex per dose:
- Total = 10
- Control animals:
- not specified
- Details on study design:
- - Duration of observation period following administration: 14 days
- Frequency of observations and weighing: Animals were observed for mortality and clinical signs. - Statistics:
- not specified
Results and discussion
- Preliminary study:
- not specified
Effect levels
- Sex:
- male
- Dose descriptor:
- LD50
- Effect level:
- > 5 000 mg/kg bw
- Based on:
- test mat.
- Mortality:
- No mortality was observed at 5000 mg/kg bw in treated animals.
- Clinical signs:
- other: Clinical symptoms were not observed in treated animals.
- Gross pathology:
- not specified
- Other findings:
- not specified
Applicant's summary and conclusion
- Interpretation of results:
- other: Not classified
- Conclusions:
- The acute oral LD50 value was considered to be >5000 mg/kg bw, when 10 male Wistar rats were treated with the given test chemical via oral route.
- Executive summary:
Acute oral toxicity study was conducted by using the given test chemical in 10 male Wistar rats at the dose concentration of 5000 mg/kg bw.
The given test chemical was dissolved or suspended in water and administered via oral route.
Animals were observed for mortality and clinical signs for 14 days. No mortality was observed at 5000 mg/kg bw in treated animals. Clinical symptoms were not observed in treated animals.
Hence, the LD50 value was considered to be >5000 mg/kg bw, when 10 male Wistar rats were treated with the given test chemical via oral route.
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