Registration Dossier
Registration Dossier
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EC number: 292-642-5 | CAS number: 90669-48-0
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
Description of key information
Not readily biodegradable (hydrocarbon waxes (petroleum), oxidised); OECD 301F, EPA OPPTS 835.3110, Clarke (2003)
Key value for chemical safety assessment
- Biodegradation in water:
- under test conditions no biodegradation observed
Additional information
In a GLP compliant study performed to the standardised guideline OECD 301F, and EPA OPPTS 835.3110, the ready biodegradability of the test material was determined by culturing predominantly domestic sewage sludge micro-organisms with the test material for 28 days. The biodegradability of the test material was determined by measuring oxygen consumption daily. Under the conditions of the study, the test material attained 55 % degradation after 28 days, according to OECD 301F the test material is considered to be not readily biodegradable.
Since the study was conducted with the read across substance, hydrocarbon waxes (petroleum), oxidised, it has been assigned a reliability score of 2 in line with the criteria of Klimisch (1997). Read across from this substance is justified on the basis of its similar physical and chemical properties to those of the registered substance. Furthermore, it has a very similar chemical structure; the registered substance is an esterified form of the read across substance.
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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