Registration Dossier
Registration Dossier
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EC number: 224-778-8 | CAS number: 4488-57-7
Toxicity to aquatic algae and cyanobacteria
Administrative data
Link to relevant study record(s)
Description of key information
The 96 hr EC50 range for the toxicity to aquatic algae was obtained from one study. The range was 22 - >100 mg/l.
Key value for chemical safety assessment
Additional information
Data was not available for 3a,4,5,6,7,7a-hexahydro-4,7 -methano-1H-indene, therefore available data has been read across from 3a,4,7,7a-tetrahydro-4,7 -methanonoindene
Bentley et al (1976) tested the toxicity of dicyclopentadiene to four species of algae. The range of EC50 values reported within the paper was between 22 - >100mg/l. The study followed a method similar to standard guidelines but did not include analytical confirmation of the exposure concentrations.
The OECD SIDS identified an Environmental Agency Japan test which showed the 72hr EC50 to be 27 mg/l and the NOEC to be 18mg/l. This study was unavailable for review but is included here as part of a weight of evidence approach together with the Bentley studies.
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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