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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.
Since cresols have a low bioaccumulation potential they are not expected to accumulate in food chains and thus not to cause any adverse effect in birds.
No valid experimental study on toxicity
of cresols to birds is available. In accordance with section 1 of REACH
Annex XI, the study does not need to be conducted if testing is
scientifically unjustified. Avian toxicity data are used in the
assessment of secondary poisoning risks in aquatic and terrestrial food
chains. Secondary poisoning concerns the potential toxic impact of a
substance on a predatory bird or mammal following ingestion of prey
items (i.e. fish and earthworms) that contain the chemical. Accumulation
of chemicals through the food chain may follow many different pathways
along different trophic levels. An assessment is solely required for
substances indicating a bioaccumulation potential (ECHA, R.7c, 2008).
Since the BCF values of the cresols (exp. BCF (o-cresol) = 10.7, exp.
BCF (m-cresol) = 20) do not indicate a significant potential for
bioaccumulation, no adverse effects on birds due to bioaccumulation in
food chains is expected. Furthermore, biodegradability of the cresol
isomers strongly determines the ability to bioaccumulate in organisms.
As o-cresol, m-cresol, and p-cresol are readily biodegradable no risk of
bioaccumulation arises. Based on
these properties no adverse effects on birds due to bioaccumulation in
food chains are expected and there is no need for testing.
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.Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
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