Registration Dossier
Registration Dossier
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EC number: 264-719-3 | CAS number: 64173-96-2
Biodegradation in water: screening tests
Administrative data
- Endpoint:
- biodegradation in water: screening test, other
- Remarks:
- calculation
- Type of information:
- calculation (if not (Q)SAR)
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- results derived from a valid (Q)SAR model and falling into its applicability domain, with limited documentation / justification
Data source
Referenceopen allclose all
- Reference Type:
- publication
- Title:
- Comparison of two methods for obtaining degradation half-lives
- Author:
- Gouin T, Cousins I, Mackay D.
- Year:
- 2 004
- Bibliographic source:
- Chemosphere. 2004 Aug;56(6):531–5.
- Report date:
- 2004
- Reference Type:
- other company data
- Title:
- Unnamed
- Year:
- 2 018
- Report date:
- 2018
Materials and methods
Test guideline
- Guideline:
- other: QSAR
Test material
- Reference substance name:
- Sodium 3-diazo-3,4-dihydro-4-oxonaphthalene-1-sulphonate
- EC Number:
- 264-719-3
- EC Name:
- Sodium 3-diazo-3,4-dihydro-4-oxonaphthalene-1-sulphonate
- Cas Number:
- 64173-96-2
- Molecular formula:
- C10H6N2O4S.Na
- IUPAC Name:
- sodium 3-diazo-3,4-dihydro-4-oxonaphthalene-1-sulphonate
- Test material form:
- solid
Constituent 1
- Specific details on test material used for the study:
- chemical structure was used as input
Results and discussion
% Degradation
- Key result
- Parameter:
- half-life in days (QSAR/QSPR)
- Value:
- > 28
- Sampling time:
- 28 d
- Remarks on result:
- not readily biodegradable based on QSAR/QSPR prediction
- Details on results:
- CAS Number:
SMILES : O([Na])S(=O)(=O)C1=CC(=N#N)C(=O)c2ccccc12
CHEM :
MOL FOR: C10 H5 N2 O4 S1 Na1
MOL WT : 272.21
--------------------------------- Biowin Summary ----------------------------------------------
Probability of Rapid Biodegradation (BIOWIN v4.10):
Biowin1 (Linear Model) : 0.7436
Biowin2 (Non-Linear Model) : 0.9971
Expert Survey Biodegradation Results:
Biowin3 (Ultimate Survey Model): 2.8163 (weeks )
Biowin4 (Primary Survey Model) : 3.6416 (days-weeks )
MITI Biodegradation Probability:
Biowin5 (MITI Linear Model) : 0.1152
Biowin6 (MITI Non-Linear Model): 0.0431
Anaerobic Biodegradation Probability:
Biowin7 (Anaerobic Linear Model): -0.4488
Ready Biodegradability Prediction: NO
Applicant's summary and conclusion
- Interpretation of results:
- not readily biodegradable
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