Registration Dossier
Registration Dossier
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EC number: 262-309-9 | CAS number: 60580-61-2
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
- Endpoint:
- biodegradation in water: ready biodegradability
- Type of information:
- (Q)SAR
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- results derived from a (Q)SAR model, with limited documentation / justification, but validity of model and reliability of prediction considered adequate based on a generally acknowledged source
- Guideline:
- other: REACH Guidance on QSARs R.6, 2008
- Principles of method if other than guideline:
- BIOWIN v.4.10 (EPISuite) for Biodegradation
- GLP compliance:
- no
- Specific details on test material used for the study:
- SMILES code: C(=O)(O)c1cc(C(=O)O)cc(N(=O)=O)c1
- Key result
- Parameter:
- probability of ready biodegradability (QSAR/QSPR)
- Remarks on result:
- not readily biodegradable based on QSAR/QSPR prediction
- Interpretation of results:
- not readily biodegradable
- Conclusions:
- Based on the model outcome of BIOWIN v.4.10, 5-nitroisophthalica acid may not be considered as readily biodegradable. 5-nitroisophthalica acid is within the applicability domain of “BIOWIN v.4.10”. Results of the different prediction models are however somewhat contradictory. In sum, the conditions for ready biodegradability are not satisfied since the Biowin5 (MITI linear model) probability is > 0.5, but the Biowin3 (ultimate survey model) result is "weeks-months". Thus, the prediction is fully reliable and addresses the information requirement of Regulation (EC) No 1907/2006 (REACH) Annex VII section 9.2.1.1.
Reference
Biowin1 (Linear Model Prediction): Biodegrades Fast
Biowin2 (Non-Linear Model Prediction): Biodegrades Fast
Biowin3 (Ultimate Biodegradation Timeframe): Weeks-Months
Biowin4 (Primary Biodegradation Timeframe): Days-Weeks
Biowin5 (MITI Linear Model Prediction): Readily Degradable
Biowin6 (MITI Non-Linear Model Prediction): Not Readily Degradable
Biowin7 (Anaerobic Model Prediction): Biodegrades Fast
Ready Biodegradability Prediction: NO
Description of key information
Based on the QSAR prediction of BIOWIN (v 4.10), 5-nitroisophthalic acid may not be considered as ready biodegradable.
Key value for chemical safety assessment
- Biodegradation in water:
- under test conditions no biodegradation observed
Additional information
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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