Registration Dossier
Registration Dossier
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EC number: 202-401-8 | CAS number: 95-23-8
Toxicity to microorganisms
Administrative data
- Endpoint:
- activated sludge respiration inhibition testing
- Type of information:
- experimental study
- Adequacy of study:
- supporting study
- Study period:
- 1988
- Reliability:
- 2 (reliable with restrictions)
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 988
- Report date:
- 1988
Materials and methods
Test guideline
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- OECD Guideline 209 (Activated Sludge, Respiration Inhibition Test
- Deviations:
- not specified
- GLP compliance:
- not specified
Test material
- Reference substance name:
- 5-amino-1,3-dihydro-2H-benzimidazol-2-one
- EC Number:
- 202-401-8
- EC Name:
- 5-amino-1,3-dihydro-2H-benzimidazol-2-one
- Cas Number:
- 95-23-8
- Molecular formula:
- C7H7N3O
- IUPAC Name:
- 5-amino-1,3-dihydro-2H-benzimidazol-2-one
Constituent 1
Sampling and analysis
- Analytical monitoring:
- not specified
Test organisms
- Test organisms (species):
- activated sludge of a predominantly domestic sewage
Study design
- Test type:
- static
- Water media type:
- not specified
- Limit test:
- yes
- Total exposure duration:
- 3 h
Results and discussion
Effect concentrations
- Duration:
- 3 h
- Dose descriptor:
- EC0
- Effect conc.:
- > 690 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- not specified
- Basis for effect:
- inhibition of total respiration
- Remarks:
- respiration rate
Applicant's summary and conclusion
- Executive summary:
EC0 for bacteria tox of the test item EC> 690 mg/L
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