Registration Dossier
Registration Dossier
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EC number: 939-331-9 | CAS number: 1394155-71-5
Biodegradation in water and sediment: simulation tests
Administrative data
Link to relevant study record(s)
Description of key information
Inherently biodegradable according to OECD criteria: 96% after 30 days based on DOC removal (OECD 303 A).
Key value for chemical safety assessment
Additional information
Since no reliable biodegradation tests are available for 16-18 and C18–unsatd. AS Na (CAS 1394155-71-5), in accordance to Regulation (EC) No. 1907/2006 Annex XI, 1.5 a read-across to another structurally related category member was conducted. Read-across data available for C16-18AS Na (CAS 68955-20-4) were used.
One reliable non-GLP simulation test with C16-18As Na (CAS 68955-20-4) according to OECD 303 A guideline is available (Richterich 2001). Adapted activated sludge from municipal sewage treatment plant was used as inoculum and the initial concentration of the test substance was 20 mg/L as DOC. The inoculum was adapted to synthetic waste water for one week. Biodegradation measured as DOC removal reached 96% after 30 days.
Due to structural and property similarities with the tested category member, it can be concluded that 16-18 and C18–unsatd. AS Na (CAS 1394155-71-5) is inherently biodegradable.
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