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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 604-608-2 | CAS number: 147853-32-5
Endpoint summary
Administrative data
Description of key information
Additional information
No studies investigating the toxicity of Fatty acids, C18-unsatd., dimers, di-Me esters, hydrogenated (CAS 147853-32-5) to terrestrial organisms are available. However, a testing proposal for a terrestrial toxicity study with the structural analogue substance Fatty acids, C18-unsatd., dimers (CAS 61788-89-4) is currently under evaluation.
A long-term toxicity test with soil macroorganisms (earthworms, OECD 222) was proposed. A long-term test was considered in order to take into account the potential persistence, high adsorption potential (log Koc > 5) and low water solubility of the substance. Testing of the toxicity to earthworms evaluates the exposure to the test substance via soil pore water, surface contact as well as by ingestion of soil particles. In the case of observed effects in the proposed test, additionally a long-term toxicity test with higher plants will be conducted according to ISO 22030 with the same substance. Otherwise it is assumed, that due to the lack of effects in the long-term toxicity test with soil invertebrates, as well as the lack of effects in a long-term toxicity test with fish up to the water solubility limit of the tested substance (CAS 68783-41-5) and the low bioaccumulation potential, toxicity to plants cannot be expected. Therefore an additional long-term toxicity test with higher plants would not be reasonable.
The dossier will be updated as soon as possible and the Chemical Safety Assessment according to Annex I of Regulation (EC) No 1907/2006 will be re-evaluated based on the outcome of the new study.
As the test substance is not classified as toxic or harmful, the substance is not considered to cause toxic effects in predators. Additionally, the uptake and bioaccumulation potential is low and thus the substance is considered to cause no hazard to predators. Hence, a study with birds is not needed due to animal welfare reasons and no PNEC oral is derived from data on mammalian toxicity.
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.
