Registration Dossier
Registration Dossier
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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.
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EC number: 203-920-2 | CAS number: 111-91-1
Endpoint summary
Administrative data
Description of key information
Additional information
A full data set is available; acute endpoints for three trophic levels are available as well as three long-term endpoints.
Fish 96h-LC50 of 50.2 mg/L is the lowest endpoint of the three available acute endpoints.
The Daphnia magna reproduction study gave the lowest long-term endoint, the 21d-EC10 is 1.03 mg/L. This endpoint is used for PNEC derivation.
The PNECstp was derived from the only available microorganisms assay. The median effect level was determined to be >100 mg/L. As a worst case, 100 mg/L was used in the risk assessment.
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.
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