Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 306-232-1
CAS number: 96690-38-9
Readily biodegradable: 68.1 - 71.7% (CO2 evolution) after 28 d (OECD 301B)
Since no studies investigating the ready biodegradability of fatty
acids, C16-18, 2-octyldodecyl esters (CAS 96690-38-9) are available for
this endpoint, in accordance to Regulation (EC) No. 1907/2006 Annex XI,
1.5 a read across to the structurally related category member
2-octyldodecyl isooctadecanoate (CAS 93803-87-3) was conducted. The
read-across substance is representative to evaluate the biodegradation
of fatty acids, C16-18, 2-octyldodecyl esters. 2-octyldodecyl
isooctadecanoate is characterized by a similar (longer) fatty acid chain
length (C18iso compared to C16-C18) and the same fatty alcohol component
(2-octyldodecanol). The study with the read-across substance
2-octyldodecyl isooctadecanoatewas performed according to OECD 301B
under aerobic conditions using domestic activated sludge as inoculum
(Desmares-Koopmans, 1998). A test substance concentration of approx.
14.5 mg/L was degraded to an extent of 68.1 - 71.7% after 28 d. Since
2-octyldodecyl isooctadecanoate is a UVCB substance and consists of
structurally similar constituents with [e.g. different chain-lengths,
degree and/or site of branching or stereo-isomers], sequential (instead
of concurrent) biodegradation of the individual structures can take
place, but all can be considered as readily biodegradable. Thus,
referring to Annex I of the OECD Guideline for Testing of Chemicals
‘Revised introduction to the OECD guidelines for testing of chemicals,
section 3’ (OECD, March 2006), the 10-day window should not be
considered for this UVCB substance and due to a degradation of >60 %
within 28 days the substance can be regarded as readily biodegradable.
Moreover, the read-across substance is assumed not to be inhibitory to
activated sludge microorganisms based on a biodegradation of > 25% in
the toxicity control after 14 d.
Based on the results from one structurally related read-across
substance (in accordance to Regulation (EC) No 1907/2006 Annex XI, 1.5)
it can be concluded that fatty acids, C16-18, 2-octyldodecyl esters is
readily biodegradable according to the OECD criteria.
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.Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
Welcome to the ECHA website. This site is not fully supported in Internet Explorer 7 (and earlier versions). Please upgrade your Internet Explorer to a newer version.
Do not show this message again