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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Environmental fate & pathways

Biodegradation in water: screening tests

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Administrative data

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 valid (Q)SAR model, but not (completely) falling into its applicability domain, with adequate and reliable documentation / justification

Data source

Reference
Reference Type:
other company data
Title:
Unnamed
Year:
2018
Report date:
2018

Materials and methods

Test guideline
Qualifier:
no guideline available
Principles of method if other than guideline:
OECD Toolbox v3.1
Estimation for BOD by CATALOGIC: 301C v.10.14
Toolbox prediction report is attached in IUCLID
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
ethyl 2-({[(4-chloro-6-methoxypyrimidin-2-yl)carbamoyl]amino}sulfonyl)benzoate
EC Number:
618-690-2
Cas Number:
90982-32-4
Molecular formula:
C15H15ClN4O6S
IUPAC Name:
ethyl 2-({[(4-chloro-6-methoxypyrimidin-2-yl)carbamoyl]amino}sulfonyl)benzoate
Test material form:
solid
Details on test material:
Purity: Assume 100%
Specific details on test material used for the study:
Smiles: CCOC(=O)c1ccccc1S(=O)(=O)NC(=O)Nc1nc(Cl)cc(OC)n1

Results and discussion

% Degradation
Key result
Parameter:
% degradation (O2 consumption)
Value:
0.21
St. dev.:
0.006
Remarks on result:
not readily biodegradable based on QSAR/QSPR prediction

Applicant's summary and conclusion

Validity criteria fulfilled:
yes
Interpretation of results:
not readily biodegradable
Conclusions:
0.21% degradation was predicted
Executive summary:

The catalogic model for biodegradation was used within the QSAR Toolbox. 0.21% degradation based on BOD was predicted indicating the test substance is not readily biodegradable. Additional supporting documention is provided in the prediction report attached in IUCLID.

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