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EC number: 614-682-8 | CAS number: 68647-95-0
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
Description of key information
3 biodegradation studies are available: In a Manometric Respirometry Test (OECD 301F) the test item reached a biodegradation rate of 27% based on CO2 after 28d. In a second study an enhanced CO2- Headspace test (OECD 310) covering a period of 60 days, the test item reached a biodegradation rate of 27% based on CO2 after 28d and 39 % based on CO2 after 60d. In a third study, a BODIS test (ISO10708) , the test item reached a biodegradation rate of 40% based on THOD after 28d. The test substance therefore tuned out to be inherently biodegradable.
Additional modeling using Biowin2&3 was performed for the main components to screen if the substance potencially fulfil criteria for PBT. Based on the results the main components Fatty acid, C18 -unsat. ,dimer, compds, with C14 –Dialkylamine (value Biowin3: 2.17) and Fatty acid, C18 -unsat. ,dimer, compds, with C16 -Dialkylamine (value Biowin3: 2.04) have to be considered to be persistent (P).
Key value for chemical safety assessment
- Biodegradation in water:
- inherently biodegradable, not fulfilling specific criteria
Additional information
3 biodegradation studies are available: In a Manometric Respirometry Test (OECD 301F) the test item reached a biodegradation rate of 27% based on CO2 after 28d. In a second study an enhanced CO2- Headspace test (OECD 310) covering a period of 60 days, the test item reached a biodegradation rate of 27% based on CO2 after 28d and 39 % based on CO2 after 60d. In a third study, a BODIS test (ISO10708) , the test item reached a biodegradation rate of 40% based on THOD after 28d. The test substance therefore turned out to be inherently biodegradable.
Based on the available test results derived from testing , it has to be concluded that some parts of the main component do not fulfil the criteria for biodegradation and have to be considered to be persistent.
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