Registration Dossier
Registration Dossier
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EC number: 278-113-1 | CAS number: 75199-08-5
Short-term toxicity to fish
Administrative data
- Endpoint:
- short-term toxicity to fish
- Type of information:
- experimental study
- Adequacy of study:
- supporting study
- Study period:
- May 1980
- Reliability:
- 4 (not assignable)
- Rationale for reliability incl. deficiencies:
- documentation insufficient for assessment
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 980
- Report date:
- 1980
Materials and methods
Test guideline
- Qualifier:
- no guideline available
- GLP compliance:
- yes
Test material
- Reference substance name:
- Chromate(2-), [2,4-dihydro-4-[(2-hydroxy-4-nitrophenyl)azo]-5-methyl-3H-pyrazol-3-onato(2-)][3-[[4,5-dihydro-3-methyl-1-(4-methylphenyl)-5-oxo-1H-pyrazol-4-yl]azo]-4-hydroxy-5-nitrobenzenesulfonato(3-)]-, disodium
- EC Number:
- 278-113-1
- EC Name:
- Chromate(2-), [2,4-dihydro-4-[(2-hydroxy-4-nitrophenyl)azo]-5-methyl-3H-pyrazol-3-onato(2-)][3-[[4,5-dihydro-3-methyl-1-(4-methylphenyl)-5-oxo-1H-pyrazol-4-yl]azo]-4-hydroxy-5-nitrobenzenesulfonato(3-)]-, disodium
- Cas Number:
- 75199-08-5
- Molecular formula:
- C27H19CrN10O11S.2Na C27H19CrN10Na2O11S
- IUPAC Name:
- Chromate(2-), [2,4-dihydro-4-[(2-hydroxy-4-nitrophenyl)azo]-5-methyl-3H-pyrazol-3-onato(2-)][3-[[4,5-dihydro-3-methyl-1-(4-methylphenyl)-5-oxo-1H-pyrazol-4-yl]azo]-4-hydroxy-5-nitrobenzenesulfonato(3-)]-, disodium
- Test material form:
- solid: particulate/powder
Constituent 1
Sampling and analysis
- Analytical monitoring:
- no
Test solutions
- Vehicle:
- no
Test organisms
- Test organisms (species):
- Leuciscus idus melanotus
Study design
- Test type:
- static
- Water media type:
- freshwater
- Limit test:
- no
Test conditions
- Nominal and measured concentrations:
- 20 mg/L, 50 mg/L
- Reference substance (positive control):
- not specified
Results and discussion
Effect concentrationsopen allclose all
- Duration:
- 48 h
- Dose descriptor:
- LC50
- Effect conc.:
- 31.6 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- mortality (fish)
- Remarks on result:
- other: calculated as geometric mean between LC0 and LC100
- Duration:
- 48 h
- Dose descriptor:
- LC0
- Effect conc.:
- 20 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- mortality (fish)
- Duration:
- 48 h
- Dose descriptor:
- LC100
- Effect conc.:
- 50 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- mortality (fish)
Applicant's summary and conclusion
- Validity criteria fulfilled:
- not specified
- Conclusions:
- The 48-h LC50 to fish (Leucisdus idus melanotus) was calculated as geometric mean between LC0 (20 mg/L) and LC100 (50 mg/L). The documentation of the study is insufficient for any further assessment.
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