Registration Dossier
Registration Dossier
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EC number: 289-339-5 | CAS number: 87741-01-3
Biodegradation in water: screening tests
Administrative data
- Endpoint:
- biodegradation in water: ready biodegradability
- Type of information:
- migrated information: read-across from supporting substance (structural analogue or surrogate)
- Adequacy of study:
- other information
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Guideline test
Data source
Reference
- Reference Type:
- publication
- Title:
- Biodegradation and Biococentration of Existing Chemical Substances under the Chemical Substances Control Law
- Author:
- MITI (Ministry of International Trade and Industry)
- Year:
- 1 990
- Bibliographic source:
- National Institut of Technology and Evaluation (Japan). http://www.safe.nite.go.jp
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 301 D (Ready Biodegradability: Closed Bottle Test)
- GLP compliance:
- not specified
Test material
- Reference substance name:
- Buta-1,3-diene
- EC Number:
- 203-450-8
- EC Name:
- Buta-1,3-diene
- Cas Number:
- 106-99-0
- Molecular formula:
- C4H6
- IUPAC Name:
- buta-1,3-diene
- Details on test material:
- - Name of test material (as cited in study report): 1,3 Butadiene
Constituent 1
Study design
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- activated sludge, domestic, non-adapted
- Details on inoculum:
- - Source of inoculum/activated sludge : return sludge in the secondary effluent
at a municipal sewage treatment plant - Duration of test (contact time):
- 28 d
Initial test substance concentrationopen allclose all
- Initial conc.:
- 2.06 other: pmm
- Based on:
- test mat.
- Initial conc.:
- 4.95 other: ppm
- Based on:
- test mat.
Parameter followed for biodegradation estimation
- Parameter followed for biodegradation estimation:
- O2 consumption
Results and discussion
% Degradation
- Parameter:
- % degradation (O2 consumption)
- Value:
- 0 - 4
- Sampling time:
- 28 d
Any other information on results incl. tables
no further information
Applicant's summary and conclusion
- Interpretation of results:
- under test conditions no biodegradation observed
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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