Registration Dossier
Registration Dossier
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EC number: 271-739-6 | CAS number: 68606-29-1 A complex combination of hydrocarbons produced during butylene concentrate production. It consists predominantly of C4 and C8 hydrocarbons.
Short-term toxicity to aquatic invertebrates
Administrative data
Link to relevant study record(s)
Description of key information
QSAR estimates for the 48 hr EC50 to aquatic invertebrates for members of this category range from 0.0015 to 0.92 mg/L. Measured data for the stream 97280-83-6 in the category, was reported to be >3.10mg/l
Key value for chemical safety assessment
Additional information
Two studies were available from Evonik Oxeno (2009) for the stream 97280 -83 -6 which reported the toxicity based on the WAF. The studies reported a EC50s for Daphnia magna of >3.10 mg/l and >100 mg/l
In the absense of measured data for the other category members, QSAR estimates (ECOSAR, part of EPISuite V4.0 as recommeneded by the TGD) were used to predict toxicity based on representative members of the category. The 48 hr EC50 to aquatic invertebrates for members of this category range from 0.0015 - 0.92 mg/L.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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