Registration Dossier
Registration Dossier
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: 500-204-4 | CAS number: 68334-05-4
Long-term toxicity to aquatic invertebrates
Administrative data
Link to relevant study record(s)
Description of key information
The chemical safety assessment carried out according to Annex I of Regulation (EC) No 1907/2006 does not indicate the need to investigate further the long-term toxicity to aquatic invertebrates.
Key value for chemical safety assessment
Additional information
The chemical safety assessment carried out according to Annex I of Regulation (EC) No 1907/2006 does not indicate the need to investigate further the long-term toxicity to aquatic invertebrates.
There is no long-term test on aquatic invertebrates available for Fatty acids, C18-unsatd., dimers, 2-ethylhexylesters (CAS No. 68334-05-4). The chemical safety assessment according to Annex I of Regulation (EC) No 1907/2006 does not indicate the need to investigate further the long-term toxicity to aquatic invertebrates. Thus, in accordance to Annex IX, column 2 no further long-term toxicity test to aquatic invertebrates is proposed. Available short-term studies for fish, daphnia and algae, indicate no potential for aquatic toxicity (no effects up to the limit of the water solubility). Moreover, the long-term NOELR from an algal growth study and the NOEC of a fish study performed with a structurally related substance are clearly above the limit of water solubility (< 1 mg/L).
Based on the short-term values, aquatic invertebrates cannot be identified as the most sensitive taxonomic group. According to the “Guidance on information requirements and chemical safety assessment Chapter R.7b: Endpoint specific guidance, R.7.8.5.3” (ECHA, 2012), long-term testing of aquatic invertebrates should only be conducted if it represents the most sensitive taxonomic group.
Furthermore, due to its ready biodegradability it is not likely that aquatic organisms will be exposed to Fatty acids, C18 -unsatd., dimers, 2 -ethylhexylesters since it will be ultimately degraded in sewage treatment plants and only low concentrations (if any) will be released into the environment, where further biodegradation can be expected. Based on all the above mentioned information, it is unlikely that the substance will exhibit chronic toxicity to aquatic organisms up to the limit of water solubility. Hence, based on this information, no further long-term test with aquatic invertebrates is proposed.
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.
