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Environmental fate & pathways

Biodegradation in water: screening tests

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Administrative data

Link to relevant study record(s)

Reference
Endpoint:
biodegradation in water: screening test, other
Remarks:
calculation
Type of information:
calculation (if not (Q)SAR)
Adequacy of study:
weight of evidence
Study period:
2018
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
Guideline:
other: QSAR
Specific details on test material used for the study:
chemical structure was used as input
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 : CLS(=O)(=O)C1=CC(=N#N)C(=O)c2ccccc12
CHEM :
MOL FOR: C10 H5 CL1 N2 O3 S1
MOL WT : 268.68
--------------------------------- Biowin Summary ----------------------------------------------

Probability of Rapid Biodegradation (BIOWIN v4.10):
Biowin1 (Linear Model) : 0.6265
Biowin2 (Non-Linear Model) : 0.2211
Expert Survey Biodegradation Results:
Biowin3 (Ultimate Survey Model): 2.5830 (weeks-months)
Biowin4 (Primary Survey Model) : 3.4379 (days-weeks )
MITI Biodegradation Probability:
Biowin5 (MITI Linear Model) : 0.0604
Biowin6 (MITI Non-Linear Model): 0.0258
Anaerobic Biodegradation Probability:
Biowin7 (Anaerobic Linear Model): -0.4488
Ready Biodegradability Prediction: NO
Interpretation of results:
not readily biodegradable

Description of key information

Based on QSAR calculation, the test item is not considered to be readily biodegradable.

Key value for chemical safety assessment

Biodegradation in water:
under test conditions no biodegradation observed

Additional information