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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 204-593-9 | CAS number: 123-03-5
Endpoint summary
Administrative data
Description of key information
Additional information
Short-term aquatic toxicity testing on the substance was conducted in fish (one test on the rainbow trout,Oncorhynchus mykiss)and aquatic invertebrates (two tests on the water flea Daphnia magna). An algal growth inhibition assay (Selenastrum capricornutum, also called Pseudokirchneriella subcapitata) and an activated sludge respiration inhibition test (ASRIT) were conducted on the substance. Aquatic invertebrates were identified as the most sensitive trophic level; the geometric mean of the EC50 values from the two studies in D. magna was determined to be 6.13 µg/L. The ErC50in algae and LC50 in fish were reported at higher values of 26.9 µg/L and 160 µg/L, respectively; the EC50 from the ASRIT was substantially higher at 20,700 µg/L (= 20.7 mg/L). Long-term testing in fish and invertebrates was not conducted; the substance is soluble in water, and has been shown to be rapidly degraded in the environment. The results of the chemical safety assessment showed that the risk characterization ratios for surface water are all below one. Therefore, long-term aquatic toxicity testing was not indicated.
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.
