Registration Dossier
Registration Dossier
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EC number: 267-500-0 | CAS number: 67874-72-0
Short-term toxicity to aquatic invertebrates
Administrative data
Link to relevant study record(s)
Description of key information
The short-term toxicity to aquatic invertebrates is assessed based on read-across from the close structural analogue Verdox (CAS# 20298 -69 -5) and the EC50 value determined at 16.2 mg/L.
Key value for chemical safety assessment
Fresh water invertebrates
Fresh water invertebrates
- Effect concentration:
- 16.2 mg/L
Additional information
The acute toxicity of the read-across source chemical Verdox toDaphnia magnawas determined in a GLP-compliant EU guideline C.2 study. In this static test using closed vessles, groups of 40 daphnids were exposed for 48 hours to nominal test concentrations of 0, 2.8, 3.9, 5.5, 7.8, 11, 16, 22, 31 and 44 mg/L of the test substance in M4 -medium. The 0, 2.8 and 44 mg/L test concentrations were analysed at the start and the end of the test. Measured concentrations were within 80% of nominal values. The EC50 was calculated to be 17 mg/L by Probit-analysis.
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