Registration Dossier
Registration Dossier
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EC number: 925-894-8 | CAS number: 1174522-20-3
Endpoint summary
Administrative data
Description of key information
Additional information
Acute Fish Toxicity:
Water accommodated fractions of hydrocarbons, C8-C10, cyclics, <2% aromatics, produced a 96-hour LL50 value of 3.6 mg/L with rainbow trout, Oncorhynchus mykiss. These data are used as read-across data to hydrocarbons, C9-C11, cyclics, <2% aromatics.
Chronic Fish Toxicity:
The hydrocarbons, C9-C11, cyclics, <2% aromatics, estimated freshwater fish 28-day NOELR (No Observed Effect Loading Rate) value is 0.096 mg/l based on growth.
Acute Invertebrate Toxicity:
The water accommodated fraction (WAF) of hydrocarbons, C9-C10, n-alkanes, isoalkanes, cyclics, <2% aromatics, produced a 50% effect (immobility) with Daphnia magna at a loading of >22-<46 mg/L after a 48-hour exposure. These data are used as read-across data to hydrocarbons, C9-C11, cyclics, <2% aromatics.
Chronic Invertebrate Toxicity:
The hydrocarbons, C9-C11, cyclics, <2% aromatics, estimated freshwater invertebrate 21-day NOELR (No Observed Effect Loading Rate) value is 0.168 mg/l based on reproduction.
Algal Toxicity:
Growth of alga cultures, as measured by biomass, exposed to water accommodated fractions (WAFs) of hydrocarbons, C9-C11, n-alkanes, isoalkanes, cyclics, <2% aromatics, prepared at 1000 mg/L was inhibited by 50% after 72 hours. Therefore, the 72-hr ELb50 value is reported as 1000 mg/L. In comparison, growth of alga cultures, as measured by growth rate, were not inhibited by more than 50% by the 1000 mg/L WAF after 72 hours. Therefore, the 72-hr ELr50 value is reported as >1000 mg/L. The 72-hr NOELR values for biomass and growth rate are 1 and <1 mg/L, respectively. These data are used as read-across data to hydrocarbons, C9-C11, cyclics, <2% aromatics.
Microorganisms Toxicity:
The hydrocarbons, C9-C11, cyclics, <2% aromatics, estimated protozoan, Tetrahymena pyriformis, 48-hr EL50 value for this substance is 0.568 mg/L based on growth inhibition.
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