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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Ecotoxicological information

Toxicity to aquatic algae and cyanobacteria

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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..