Registration Dossier
Registration Dossier
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EC number: 284-892-9 | CAS number: 84989-04-8 The fraction of tar acid rich in 3- and 4-methylphenol, recovered by distillation of low-temperature coal tar crude tar acids.
Long-term toxicity to aquatic invertebrates
Administrative data
Link to relevant study record(s)
Description of key information
NOEC (21 d) = 1 mg/L on Daphnia magna (guideline proposal of the German Umweltbundesamt, 1984)
Key value for chemical safety assessment
Additional information
Long-term tests to aquatic invertebrates are only available for p-cresol. No data is available on o-cresol and m-cresol. Since there is no significant exposure of cresols to the aquatic compartment (refer to exposure assessment in CSR) long-term testing of o-cresol and m-cresol to aquatic invertebrates can be omitted (section 3 of REACH Annex XI).
The long-term toxicity of p-cresol to aquatic invertebrates was determined by a test according to the preliminary guideline proposal of the German Umweltbundesamt from1984. The 21d-NOEC was 1 mg/L for Daphnia magna (Kuehn et al. 1988, 1989). In a non-guideline study with 4 generations on the planarian Dugesia tigrina an 80-d EC10 of 2 mg/L was measured (Solki and Piontek 1987).
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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