Registration Dossier
Registration Dossier
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EC number: 203-729-4 | CAS number: 110-02-1
Biodegradation in water: screening tests
Administrative data
- Endpoint:
- biodegradation in water: ready biodegradability
- Type of information:
- experimental study
- Adequacy of study:
- weight of evidence
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Variety of data sources and peer reviewed data.
Data source
Reference
- Reference Type:
- secondary source
- Title:
- Biodegradation in water
- Author:
- MITI
- Year:
- 1 992
- Bibliographic source:
- HSDB/ SIDS / MITI: Chemicals Inspection and Testing Institute. Japan Chemical Industry Ecology - Toxicology and Information Center. ISBN 4-89074-101-1, 1992. Peer Reviwed
Materials and methods
Test guideline
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- OECD Guideline 301 C (Ready Biodegradability: Modified MITI Test (I))
- GLP compliance:
- not specified
Test material
- Reference substance name:
- Thiophene
- EC Number:
- 203-729-4
- EC Name:
- Thiophene
- Cas Number:
- 110-02-1
- Molecular formula:
- C4H4S
- IUPAC Name:
- thiophene
- Details on test material:
- The concentration of the test substance was 100 mg/L and the concentration of the activated sludge was 30 mg/L as suspended solid matters.
Constituent 1
Study design
- Oxygen conditions:
- not specified
- Inoculum or test system:
- activated sludge (adaptation not specified)
- Duration of test (contact time):
- 14 d
Results and discussion
% Degradation
- Value:
- 0
- Sampling time:
- 14 d
- Remarks on result:
- other: by BOD
Applicant's summary and conclusion
- Interpretation of results:
- under test conditions no biodegradation observed
- Conclusions:
- Thiophene is not readily biodegradable according to a protocol similar to OECD TG 301C.
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