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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 203-121-9 | CAS number: 103-54-8
Endpoint summary
Administrative data
Description of key information
Short-term aquatic toxicity has been assessed for different trophic levels: fish, Daphnia, algae and microorganisms.
Fish:
No acute fish toxicity study was performed on the test item, instead read-across data from methyl cinnamate were used. The results for methyl cinnamate were obtained in an acute fish toxicity study according to EU Method C.1. The LC50 and LC0 for methyl cinnamate was found to be 2.76 mg/L and 0.98 mg/L, respectively. After correction for molecular weight this corresponds to a LC50 (96h) of 3.00 mg/L and a LC0 (96h) of 1.06 mg/L.
Aquatic invertebrates:
Short-term toxicity to aquatic invertebrates was assessed using Daphnia, according to OECD 202. The EC50 and EC0 of the test item were found to be 29.4 mg/L and 9.1 mg/L respectively.
Algae:
The toxicity to algae was assessed according to OECD 201. The growth rate effect concentrations EC 50 (72h) is 12.3 mg/L and EC10 (72h) is 7.32 mg/L.
Micro-organisms:
The toxicity to micro-organisms was not assessed in a seperate test. Instead the results obtained for the toxicity control in the ready biodegradation study were used. The test item was found to have no inhibitory effects to the activated sludge at a concentration of 3 mg/L. The NOEC value can hence be set at 3.00 mg/L.
Additional information
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.
