Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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.
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: 206-526-9 | CAS number: 352-93-2
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
Description of key information
Diethyl sulphide is considered to be not readily biodegradable.
Key value for chemical safety assessment
Additional information
The potential of diethyl sulphide to biodegrade in water is read across from methyl ethyl sulphide. These substances are sulphides, characterised aliphatic thiols with a simple straight chain structure, characterised by a sulphur atom in the centre of the chain. The substances vary only by size, with methyl ethyl sulphide containing 3 carbons and diethyl sulphide containing 4 carbons. The substances have very similar sizes and structures, with a single unifying functional group, and given the similarity in physico-chemical properties, the substances are expected to have similar behaviour in the environment. The result being read across from methyl ethyl sulphide to diethyl sulphide is conservative and therefore, read across between the sulphides for biodegradation is considered to be justified.
Gancet (2011) is a GLP-compliant, ready biodegradation test performed, with methyl ethyl sulphide, according to the OECD testing guideline 301D (closed-bottle test). 41% degradation was observed after 28 days and according to these results, methyl ethyl sulphide is considered as not readily biodegradable. This is supported by Thiébaud (1999), a ready biodegradation test performed with methyl ethyl sulphide according to the OECD testing guideline 301D (closed-bottle test). 34% degradation was observed after 28 days and according to these results, methyl ethyl sulphide is considered as 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.
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.
