Registration Dossier
Registration Dossier
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EC number: 700-589-0 | CAS number: 1369492-52-3
Endpoint summary
Administrative data
Description of key information
Additional information
The biodegradation potential of the mixture is derived from environmental information about the end-product and the main by-product.
One GLP study according to OECD guideline 301B (1981) was performed with the end-product (including the impurity exceeding 1%). It was determined to be not readily biodegradable. The by-product was found to be inherently biodegradable in a non-GLP OECD guideline 302B-compliant study.
Reasons for read-across:
The substance was not tested for ready biodegradability. The test substance is a mixture which consists mainly of the end-product (approximately 50%) and a by-product (approximately 30%) as well as of different impurities and isomers of the end-product (one exceeding 1%). Therefore, information about ready biodegradability are derived from studies performed with the end-product and the by-product.
Performance and
observations:
A GLP
conform study was performed to assess the ready biodegradability of the
end-product (including
the impurity exceeding 1%),
according to OECD guideline 301B (1981). Two bottles each with a
concentration of 67 mg/L were prepared. After 28 days, 9% were degraded
in one bottle and 24% were degraded in the other bottle. The substance
was determined to be not readily biodegradable.
The by-product was tested for its inherently biodegradability in several non-GLP studies, according to OECD guideline 302B. After 25 days, at least 79% were degraded. The by-product is therefore inherently biodegradable.
However, no information is available for its ready biodegradability.
Discussion:
The
end-product (including the impurity exceeding 1%) is not readily
biodegradable, whereas the by-product is inherently biodegradable.
However, the major by-product was not tested for ready biodegradability.
The test substance is therefore considered to be not readily biodegradable.
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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