Registration Dossier
Registration Dossier
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EC number: 292-642-5 | CAS number: 90669-48-0
Short-term toxicity to fish
Administrative data
Link to relevant study record(s)
Description of key information
LL50 > 100 mg/L; NOELR = 100 mg/L, hydrocarbon waxes (petroleum), oxidised, OECD 203, EU Method C.1, Goodband (2012)
Key value for chemical safety assessment
Fresh water fish
Fresh water fish
- Effect concentration:
- 100 mg/L
Additional information
In a GLP compliant study performed according to the standardised guidelines OECD 203 and Method C.1, the acute toxicity of the test material was determined in Oncorhynchus mykiss.
Following a preliminary range-finding test, seven fish were exposed to a Water Accommodated Fraction (WAF) of the test material, at a single nominal loading rate of 100 mg/L for a period of 96 hours at a temperature of approximately 14 °C under semi-static test conditions. Under the conditions of the study, the 96-hour LL50 value was determined to be greater than 100 mg/L loading rate WAF based on nominal loading rates. The No Observed Effect Loading rate was determined to be 100 mg/L loading rate WAF.
Since the study was conducted with the read across substance, hydrocarbon waxes (petroleum), oxidised, it has been assigned a reliability score of 2 in line with the criteria of Klimisch (1997). Read across from this substance is justified on the basis of its similar physical and chemical properties to those of the registered substance. Furthermore, it has a very similar chemical structure; the registered substance is an esterified form of the read across substance.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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