Registration Dossier
Registration Dossier
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EC number: 270-736-7 | CAS number: 68477-53-2 A complex combination of organic compounds obtained by the distillation of products from a steam cracking process. It consists of unsaturated hydrocarbons having carbon numbers predominantly in the range of C5 through C12.
Short-term toxicity to aquatic invertebrates
Administrative data
Link to relevant study record(s)
Description of key information
Short term toxicity to aquatic invertebrates was available for 2 streams within this Category. 48h EC50 ranged from 1.2 - 2.7 mg/l with one study citing a 48h NOEC of 1.8 mg/l. 48 h EL50 ranged 1.2 -3.3 mg/l. Tests were conducted on Daphnia
Key value for chemical safety assessment
Additional information
All studies were provided by ExxonMobil (2003)
CAS No 68513 -69 -9 and 68921 -67 -5 After Daphnia magna were exposed to WAFs prepared from Pyrolysis C10+ Fuel Oil for 48 hours, the EL50 was 1.2 mg/L and EC50 was 1.2 mg/L. This study was GLP compliant and followed a standard guideline. It is considered reliable and suitable for use as a key study.
CAS No 68513 -69 -9 The 48hr EL50 was determined to be 3.3mg/l and the 48hr EC50 was determined to be 2.7mg/l. This study is GLP compliant and follows a standard guideline. The nature of the stream was taken into account and WAFs were used. This study is considered reliable and suitable for use as a supporting study.
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