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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 249-978-2 | CAS number: 29964-84-9
Short-term toxicity to fish
Administrative data
Link to relevant study record(s)
Description of key information
In a study according to guideline DIN 38412 L 18, the 48 hr LC50 for Leuciscus idus is 470 mg/L. No mortalities are observed at 450 mg/l.
This finding is supported by a short-term toxicity study with fish conducted according to OECD 203 with the structural analoge substance isotridecyl methacrylate (CAS 85736-97-6), which is a alkyl methacrylate of compairable length as to isodecyl methacrylate. The test was conducted in concentrations over the water solubility of the teststubstance. Despite the fact that the test therefore has to be considered as limited in validity from a technical point of view, it can be concluded that saturated solutions of the substance are non-toxic in short-term to fish. For more information please see the respective robust study summary of the study.
Key value for chemical safety assessment
Fresh water fish
Fresh water fish
- Effect concentration:
- 470 mg/L
Additional information
LC50 [48 h]: 470 mg / L
In a study according to guideline DIN 38412 L 18, the 48 hr LC50 for Leuciscus idus is 470 mg/L. No mortalities are observed at 450 mg/l. The water solubility of Isodecyl methacrylate is in the range of 200 µg/L .Therefore, it appears that saturated solutions of the substance are non-toxic to fish. This is confirmed by the results of fish toxicity testing with the structural analogue isotridecyl methacrylate.
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.
