Registration Dossier
Registration Dossier
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EC number: 204-442-7 | CAS number: 121-00-6
Short-term toxicity to fish
Administrative data
Link to relevant study record(s)
Description of key information
The 24 hour LC50 value of tert-butyl-4-methoxyphenol in fish (Oryzias latipes) was found to be 5.6 mg/L (ppm). But the BCF value of tert-butyl-4-methoxyphenol reported was not >= 500 as well as the substance was found to be rapidly degradable. Thus considering the CLP criteria for aquatic classification of the substance, it can be assumed to be in the classification of aquatic chronic 2 category as per the CLP regulation.
Key value for chemical safety assessment
Fresh water fish
Fresh water fish
- Effect concentration:
- 5.6 mg/L
Additional information
Supporting study of tert-butyl-4-methoxyphenol also indicates that the test substance does exhibit short term toxicity to fish as per the C & L criteria set by EU.
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