Registration Dossier
Registration Dossier
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EC number: 945-131-2 | CAS number: -
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
Description of key information
Based on expert judgement and QSAR dyes and EPI Suite predictions the substance is not readly biodegradable.
BOD5/COD = 0.04 mgO2/g
COD = 1353.6 mgO2/g
BOD5 = 54 mgO2/g
Key value for chemical safety assessment
- Biodegradation in water:
- not biodegradable
Additional information
A prediction has been done on the most representative structure using QSAR dyes and EPI Suite tools. The substance is predicted not to be readily biodegradable.
No information about the "biodegradation in water" of the Target Substance is available. Nevertheless studies on a Similar Substance (Similar Substance 01) have been used in order to fulfill regulatory requirements. Details about the structural similarity between the two substances are reported in section 13.
According to ECHA Guidance 7b and to the CLP Regulation (EC) n. 1272/2008 where other data are not available, a BOD(5 days)/COD ratio ≥ 0,5 is considered as indicative of rapid degradation. For the test substance there are no other tests of readily biodegradation, therefore the BOD5/COD ratio was used for and additional indicative evaluation.
The test substance shows a BOD5/COD = 0.04, this value suggest a no rapid biodegradation.
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