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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 242-554-8 | CAS number: 18748-98-6
Endpoint summary
Administrative data
Description of key information
In an OECD203 limit test no toxicity to fish (Danio rerio) could be determined up to the concetration of the saturated solution of Trimethyl(octadecyloxy)silane.
The registration substance is highly insoluble in water (WL<0.005mg/l ; s. IUCLID chapter 4.8), hence indicating that aquatic toxicity is unlikely to occur. Therefore no further testing is warranted.
The possible products of hydrolysis are 1-octadecanol (CAS:112 -92 -5) and Trimethylsilanol (CAS:1066 -40 -6).
Trimethylsilanol are not classified with regards to environment according to CLP inventory.
Octadecanol is REACH registered leading also in no classification with regards to environment.
C&L
The registration substance is readily biodegradable, failing the 10d-window. Up to the very low water solubility of the registration substance no aquatic effects were observed or expected. Based on these facts it can be concluded
Short-term effects
CLP no environmental classification required
Long-term (chronic) effects
CLP no environmental classification required
Additional information
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.
