Registration Dossier

Environmental fate & pathways

Endpoint summary

Administrative data

Description of key information

An experimental study was conducted investigating the ready biodegradability of the test item, reaction product of 2,3-epoxypropyl neodecanoate and Benzenesulfonic acid, C10-13-sec-alkyl derivatives, according to the OECD 301B Guideline (“Ready biodegradability, CO2 Evolution Test”) at a GLP accredited laboratory. The study satisfied all validation criteria given in the OECD Test Guidelines and is therefore considered valid and reliable.

 

The test item, at an initial concentration of 14.9 mg/L (equivalent to 10 mg carbon/L), was exposed to activated sewage sludge micro-organisms with mineral medium in sealed culture vessels in the dark at temperatures between 22 and 24 °C for 28 days. Biodegradation was assessed via determination of CO2 produced. Control solutions with inoculum and the reference item, sodium benzoate, together with a toxicity control were used for validation purposes.

 

The test item showed 14% biodegradation after 28 days and therefore cannot be considered as readily biodegradable under the OECD 301B Guideline.

Additional information