Registration Dossier
Registration Dossier
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EC number: 202-180-8 | CAS number: 92-70-6
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:
- 1992
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: All information on this study, including the reliability grade, is derived from OECD SIDS 3-hydroxy-2-naphthoic acid CAS: 92-70-6 dated 2004-11-23, as the complete study report is not at hand.
Data source
Reference
- Reference Type:
- publication
- Title:
- OECD SIDS 3-Hydroxy-2-naphthoic acid CAS: 92-70-6
- Author:
- OECD
- Year:
- 2 004
- Bibliographic source:
- OECD SIDS 3-Hydroxy-2-naphthoic acid CAS: 92-70-6, UNEP Publications 2004: 1-72, Ref 13
- Report date:
- 2004
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 301 C (Ready Biodegradability: Modified MITI Test (I))
- Deviations:
- yes
- Remarks:
- test duration only 14 days
- GLP compliance:
- not specified
Test material
- Reference substance name:
- 3-hydroxy-2-naphthoic acid
- EC Number:
- 202-180-8
- EC Name:
- 3-hydroxy-2-naphthoic acid
- Cas Number:
- 92-70-6
- Molecular formula:
- C11H8O3
- IUPAC Name:
- 3-hydroxynaphthalene-2-carboxylic acid
Constituent 1
Study design
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- mixture of sewage, soil and natural water
- Duration of test (contact time):
- 14 d
Initial test substance concentration
- Initial conc.:
- 100 mg/L
- Based on:
- test mat.
Results and discussion
% Degradation
- Parameter:
- % degradation (O2 consumption)
- Value:
- 1.3
- Sampling time:
- 14 d
Applicant's summary and conclusion
- Validity criteria fulfilled:
- yes
- Interpretation of results:
- under test conditions no biodegradation observed
- Conclusions:
- 3-hydroxy-2-naphthoic acid was not readily biodegradable
- Executive summary:
The ready degradability of 3-hydroxy-2-naphthoic acid was determined in a biodegradation study in accordance with OECD Guideline 301 C. The test duration was only 14 days. The tested concentration was 100 mg/L related to test substance. Reliability grade 2 was assigned. 3-hydroxy-2-naphthoic acid was not readily biodegradable.
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