Registration Dossier
Registration Dossier
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EC number: 204-152-0 | CAS number: 116-71-2
Toxicity to microorganisms
Administrative data
- Endpoint:
- activated sludge respiration inhibition testing
- Type of information:
- experimental study
- Adequacy of study:
- weight of evidence
- Study period:
- 1989
- Reliability:
- 4 (not assignable)
- Rationale for reliability incl. deficiencies:
- documentation insufficient for assessment
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 989
- Report date:
- 1989
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- other: OECD 302C with toxicity control
- GLP compliance:
- no
Test material
- Reference substance name:
- Violanthrene-5,10-dione
- EC Number:
- 204-152-0
- EC Name:
- Violanthrene-5,10-dione
- Cas Number:
- 116-71-2
- Molecular formula:
- C34H16O2
- IUPAC Name:
- violanthrene-5,10-dione
- Test material form:
- solid
Constituent 1
Sampling and analysis
- Analytical monitoring:
- no
Test solutions
- Vehicle:
- no
Test organisms
- Test organisms (species):
- activated sludge
Study design
- Test type:
- static
- Water media type:
- freshwater
- Limit test:
- yes
- Total exposure duration:
- 28 d
Test conditions
- Nominal and measured concentrations:
- 30 mg/L
Results and discussion
Effect concentrations
- Duration:
- 28 d
- Dose descriptor:
- NOEC
- Effect conc.:
- > 30 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- inhibition of heterotrophic respiration
Applicant's summary and conclusion
- Validity criteria fulfilled:
- yes
- Conclusions:
- The substance was not found to be inhibitory on activated sludge respiration in an OECD 302C (toxicity control with 30 mg/L test substance and aniline as reference substance).
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.
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