Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Ecotoxicological information

Toxicity to microorganisms

Currently viewing:

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.