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EC number: 265-198-5 | CAS number: 64742-94-5 A complex combination of hydrocarbons obtained from distillation of aromatic streams. It consists predominantly of aromatic hydrocarbons having carbon numbers predominantly in the range of C9 through C16 and boiling in the range of approximately 165°C to 290°C (330°F to 554°F).
Short-term toxicity to aquatic invertebrates
Administrative data
Link to relevant study record(s)
Description of key information
Short term toxicity to aquatic invertebrate data was available for 2 streams within this Category. 48hr EC50 ranged from 0.76 - 2.9 mg/l (WAF) with EL50 of 0.91-3.2mg/l (WAF). One study provided a 96h LC50 for a marine invertebrate and this showed LC50 1.4mg/l and NOEC of 1.0 mg/l
Key value for chemical safety assessment
Additional information
CAS No 68478-10-4Data was available for Resin Oils and Cyclic Dienes Category from ExxonMobil (2004). This is a GLP compliant, guideline study considered adequate for assessment. After Daphnia magna were exposed to WAFs prepared from Dicyclopentadiene/Codimer Concentrate for 48-hours, the EL50 was 0.91 mg/L and the EC50 was 0.76 mg/L.
CAS No 68477 -54 -3Two studies were available, the supporting study by TNO (1987) was a GLP compliant, equivalent to guideline study. The study was a marine study and no replicates were mentioned. The LC50 96 hr was 1.4 mg/l 96 hr NOEC was 1.0 mg/l for C9 Resinfeed SHC CAS Number 68477-54-3. The key study for Cas No 68477 -54 -3 (ExxonMobil 2004) was a GLP compliant, guideline study considered adequate for assessment. 48 hr EL50 ws 3.2 mg/L and the EC50 was 2.9 mg/L (WAF)
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