Registration Dossier
Registration Dossier
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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).
Toxicity to aquatic algae and cyanobacteria
Administrative data
Link to relevant study record(s)
Description of key information
Toxicity to aquatic algae and cyanobacteria data is available for 2 streams within this Categoryy. 72 h ErL50 ranged 1.3 -1.5 mg/l. 96 hr ErL50 ranged 1.4 - 1.5 mg/l. 72hr NOEC ranged 0.30-0.37 mg/l. 96 hr NOEC ranged 0.47 - 0.94 mg/l. 72Hr NOELR ranged 0.46-0.47mg/l. 96hr NOELR ranged 0.47-1.1 mg/l
Key value for chemical safety assessment
Additional information
CAS No 68477 -54 -3 Proprietary Data was available from ExxonMobil (2004) for 2 streams within the Resin Oils and Cyclic Dienes Category. This is a GLP compliant, guideline study considered adequate for assessment. The Effects on growth rate (r) based upon actual loading rates for Low Dicyclopentadiene Resin Oil (Low DCPD Resin Oil):72 and 96 hr ErL50 = 1.5 mg/L (<0.23* - >7.3* mg/L)72 hr NOELR = 0.46 mg/L 96 hr NOELR = 1.1 mg/L 72 hr NOEC 0.37 mg/l (measured concentrations) 96 hr NOEC 0.94 mg/l (meaured concentrations).
CAS No 68478 -10 -4 This is a GLP compliant guideline study considered adequate for assessment. The effects on growth rate (r) based upon actual loading rates for Dicyclopentadiene/Codimer Concentrate (DCPD/Codimer Concentrate) are: 72 hr ErL50 = 1.3 mg/L; 96 hr ErL50 = 1.4 mg/L 72 and 96 hr NOELR = 0.47 mg/L, 72 and 96 hr NOEC 0.30 mg/l..
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