Registration Dossier
Registration Dossier
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EC number: 932-020-9 | CAS number: 246538-71-6
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
Description of key information
22% (28 days), 62% (70 days) (unacclimated)
51% (28 days), 64% (75 days) (acclimated)
Key value for chemical safety assessment
Additional information
A study is available using a standard OECD 301F manometric respirometry test procedure for one multi-constituent isoalkane substance (Exxon 1998). The results show that the substance is not readily biodegradable, but can demonstrate high extents of biodegradability when test durations are extended. The substance composed predominantly of isooctane isomers demonstrated 22 and 62% biodegradation after 28 and 70 days, respectively. A second study was conducted with this substance that used the acclimated inoculum from the previous study, harvested on day 70 (Exxon 1998). The results showed 51 and 64% biodegradation after 28 and 75 days, respectively.
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