Registration Dossier
Registration Dossier
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EC number: 928-472-1 | CAS number: 1184301-52-7
Biodegradation in water: screening tests
Administrative data
- Endpoint:
- biodegradation in water: ready biodegradability
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 07.10.2004 - 20.12.2004
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 004
- Report date:
- 2004
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 301 D (Ready Biodegradability: Closed Bottle Test)
- Deviations:
- not specified
- GLP compliance:
- yes (incl. QA statement)
Test material
- Reference substance name:
- (6S)-4,5,6,7-tetrahydro-1,3-benzothiazole-2,6-diamine 2,3-dihydroxybutanedioic acid trihydrate
- EC Number:
- 928-472-1
- Cas Number:
- 1184301-52-7
- Molecular formula:
- C11-H17-N3-O6-S x 3H2O
- IUPAC Name:
- (6S)-4,5,6,7-tetrahydro-1,3-benzothiazole-2,6-diamine 2,3-dihydroxybutanedioic acid trihydrate
- Test material form:
- solid: particulate/powder
Constituent 1
- Specific details on test material used for the study:
- In the study report is mentioned that a dihydrate was used for testing, this statement is not correct. After further evaluation of the substances it was found out that it is a trihydrate. The batch for testing was a typical production batch.
Study design
- Inoculum or test system:
- activated sludge, domestic (adaptation not specified)
Results and discussion
% Degradation
- Parameter:
- % degradation (test mat. analysis)
- Value:
- ca. 24
- Sampling time:
- 28 d
- Details on results:
- Under the test conditions the percentage biodegradation reached a mean of 24% after 28 days based on ThOD NO3. The test item can therefore be considered to be not ready biodegradable.
Applicant's summary and conclusion
- Validity criteria fulfilled:
- yes
- Interpretation of results:
- not readily biodegradable
- Conclusions:
- Under the test conditions the percentage biodegradation reached a mean of 24% after 28 days based on ThOD NO3. The test item can therefore be considered to be not ready biodegradable.
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