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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 614-590-8 | CAS number: 68552-19-2
Short-term toxicity to aquatic invertebrates
Administrative data
Link to relevant study record(s)
Description of key information
No toxic effects on aquatic invertebrates up to the limit of water solubility, read across.
Key value for chemical safety assessment
Fresh water invertebrates
Fresh water invertebrates
- Effect concentration:
- 100 mg/L
Additional information
Data on the acute toxicity of the target substance Fatty acids, C18-unsatd., dimers, polymers with 2-ethylhexanol and neopentyl glycol (CAS 68552-19-2) to aquatic invertebrates are not available. The assessment was therefore based on studies conducted with the source substances Fatty acids, C18-unsatd., dimers, mixed esters with oleic acid and trimethylolpropane (CAS 147256-33-5) and Fatty acids, C18-unsatd., dimers, 2-ethylhexyl esters (CAS 68334-05-4) as part of a read across approach, which is in accordance with Regulation (EC) No. 1907/2006, Annex XI, 1.5. Further justification is given within the analogue justification in IUCLID section 13.
The toxicity of the source substance Fatty acids, C18-unsatd., dimers, mixed esters with oleic acid and trimethylolpropane (CAS 147256-33-5) was investigated in a study following OECD guideline 202 (GLP). The test organism Daphnia magna was exposed to water accomodated fractions with a nominal loading rate of 10, 18, 32, 56 and 100 mg /L for 48 hours. The substance concentration was determined by measuring the TOC at test start and test termination after 48 hours. The analytically determined concentrations were close to the limit of quantification thus the effect concentrations were related to the nominal loading rates. No immobilisation was recorded and an EL50 (48 h) > 100 mg/L based on the nominal loading rates was reported.
The acute toxicity of the source substance Fatty acids, C18-unsatd., dimers, 2-ethylhexyl esters (CAS 68334-05-4)was conducted according to OECD 202 (GLP).Daphnia magna were exposed to a nominal loading rate of 100 mg/L (WAF) for 48 hours. Immobile daphnids were not observed. The determined EL50 (48 h) was > 100 mg/L (nominal loading rate).
Based on the results of the suitable source substance (in accordance to Regulation (EC) No 1907/2006 Annex XI, 1.5) toxic effects of Fatty acids, C18-unsatd., dimers, polymers with 2-ethylhexanol and neopentyl glycol (CAS 68552-19-2) on aquatic invertebrates up to the limit of water solubility are not expected.
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.
