Registration Dossier
Registration Dossier
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EC number: 204-303-0 | CAS number: 119-17-5
Toxicity to microorganisms
Administrative data
- Endpoint:
- toxicity to microorganisms
- Type of information:
- experimental study
- Adequacy of study:
- supporting study
- Reliability:
- 3 (not reliable)
- Rationale for reliability incl. deficiencies:
- other: Only short summary is available
Data source
Reference
- Reference Type:
- other: Study report evaluation
- Title:
- Unnamed
- Year:
- 1 990
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- DIN 38412-8 (Pseudomonas Zellvermehrungshemmtest)
- Deviations:
- not specified
- GLP compliance:
- not specified
Test material
- Reference substance name:
- m-(4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-1-yl)benzenesulphonic acid
- EC Number:
- 204-303-0
- EC Name:
- m-(4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-1-yl)benzenesulphonic acid
- Cas Number:
- 119-17-5
- Molecular formula:
- C10H10N2O4S
- IUPAC Name:
- 3-(3-methyl-5-oxo-4,5-dihydro-1H-pyrazol-1-yl)benzene-1-sulfonic acid
Constituent 1
Test solutions
- Vehicle:
- not specified
- Details on test solutions:
- stock solution 1250 mg/l, 23 h stirred at RT (22°C)
pH adjustment from 2.6 to 6.9
Test organisms
- Test organisms (species):
- Pseudomonas putida
- Details on inoculum:
- no data
Study design
- Test type:
- not specified
- Water media type:
- not specified
Test conditions
- Details on test conditions:
- No details are given
- Reference substance (positive control):
- not specified
Results and discussion
Effect concentrationsopen allclose all
- Duration:
- 16 h
- Dose descriptor:
- EC10
- Effect conc.:
- > 1 000 mg/L
- Duration:
- 16 h
- Dose descriptor:
- EC50
- Effect conc.:
- > 1 000 mg/L
- Duration:
- 16 h
- Dose descriptor:
- other: EC90
- Effect conc.:
- > 1 000 mg/L
Applicant's summary and conclusion
- Validity criteria fulfilled:
- not specified
- Conclusions:
- EC 50 of the test substance is above 1000 mg/L after 16 hours of exposure.
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