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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 941-032-3 | CAS number: -
Short-term toxicity to aquatic invertebrates
Administrative data
Link to relevant study record(s)
Description of key information
Key value for chemical safety assessment
Additional information
There is no aquatic invertebrate toxicity test for "Reaction products of 3-methylbutanal and 3-methylbut-3-en-1-ol, distillation overheads, acid-treated, hydrogenated" available. Thus, the hazard assessment is based on both main components of the Reaction products. For 2H-Pyran, tetrahydro-4-methyl-2-(2-methylpropyl)- (CAS 13477-62-8; 30 -80% of the Reaction product) a study of a analog substance (CAS 16409-43-1) has been used. The toxicity of this substance towards Daphnia magna was investigated according to OECD Guideline 202 under GLP conditions (BASF 2008). The calculated 48h-EC50 was 33.2 mg/l (nominal).
For the second main component 2H-pyran-4 -ol (CAS 63500-71-0; 10 -60% of reaction product) a
guideline study on the acute toxicity to Daphnia magna was performed according to OECD guideline 202 and an EC50 of ca. 320 mg/l was detected. The animals were exposed to the substance for 48 hours in a static test system (Unilever Research UK, 1996).Based on the assessment of both main components, the toxicity to aquatic invertebrates of "Reaction products of 3-methylbutanal and 3-methylbut-3-en-1-ol, distillation overheads, acid-treated, hydrogenated" is considered to be 33.2 mg/L as a worst-case assumption.
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.
