Registration Dossier
Registration Dossier
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EC number: 906-484-8 | CAS number: -
Short-term toxicity to fish
Administrative data
Link to relevant study record(s)
Description of key information
The following results were determined for the test item reaction mass of DIPE and 2-methylpent-2-ene (species: Danio rerio): 24h, 48h, 72h and 96h-NOEC = 10 mg/L; 24h, 48h, 72h and 96h-LC50 >10 mg/L; 24h, 48h, 72h and 96h-LC100 > 10 mg/L.
Key value for chemical safety assessment
Fresh water fish
Fresh water fish
- Effect concentration:
- 10 mg/L
Additional information
The LC50 value and the NOEC for the mortality of Danio rerio of reaction mass of DIPE and 2-methylpent-2-ene was measured according to OECD 203, respectively EU C.1 guideline under GLP. To assess if fish are more sensitive to the reaction mass than daphnia, a limit test was performed. Following results were obtained: 96h-NOEC = 10 mg/L; 96h-LC50 > 10 mg/L.
The measured concentrations are higher than the nominal concentration. As no mortality occurred, this is stated as uncritical. The analytical determinations of the test item showed good correlation between old and new test solutions. The determination of the results was based on the geometric mean of the concentrations.
The described limit test with fish showed that fish are less sensitive to the test substance than daphnia. Therefore, PNEC calculations and classification are based on the EC50 from the daphnia test.
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