Registration Dossier
Registration Dossier
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EC number: 918-906-8 | CAS number: 65684-27-7
Toxicity to microorganisms
Administrative data
Link to relevant study record(s)
Description of key information
No toxic effects on microorganisms up to the limit of water solubility, read across.
Key value for chemical safety assessment
Additional information
Data on the toxicity of Glyceryl undecylenate (CAS 123759-97-7) to aquatic microorganisms are not available. The assessment was therefore based on the inhibition control of the ready biodegradability study conducted with Glycerides, C8-C10, mono- and di- (CAS 85536-07-8) as part of a read across approach, which is in accordance with Regulation (EC) No. 1907/2006, Annex XI, 1.5. Further justification is given within the overall summary chapter 6.1 and within the analogue justification section 13.
For Glycerides, C8-C10, mono- and di- (CAS 85536-07-8) a
biodegradation screening test according to OECD 301B including a
toxicity control is available (Flach, 2012). The substance concentration
in the toxicity control was used as NOEC value (in accordance with the
Guidance on information requirements and chemical safety assessment
Chapter R.7b, ECHA 2014). The substance concentration in the toxicity
control was 46.9 mg/L. After 14 days a degradation rate of 81.1% was
observed. The rate clearly indicats that Glycerides, C8-C10, mono- and
di- is not toxic to activated sludge microorganisms, and therefore, the
test item concentration of 46.9 mg/L was converted to a NOEC of ≥ 46.9
mg/L.
Based on the results for the read-across substances, Glyceryl
undecylenate (CAS 123759-97-7) is considered not toxic to aquatic
microorganisms within the limit of water solubility.
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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