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EC number: 243-072-0
CAS number: 19438-60-9
data are available to evaluate the toxicity of the substance or its
hydrolysis product to terrestrial organisms. A test towards terrestrial
organisms should be proposed by the registrant, if the chemical safety
assessment indicates the need to further investigate the effects on
terrestrial organisms. Annex IX of Regulation 1907/2006 states that in
the absence of toxicity data for terrestrial organisms, the equilibrium
partitioning method (EPM) may be applied to assess the hazard to
terrestrial organisms. The results of the chemical safety assessment
indicate that potential exposure would not be expected to result in an
unacceptable level of risk for the terrestrial compartment. Therefore,
no specific testing is required to assess the toxicity of the substance
to terrestrial arthropods.
there is no wide dispersive use as the chemical is only used in
industrial processes. From industrial processes, the release of 4-MHHPA
into the sewage is very limited, if not completely negligible, as the
chemical is incorporated into a matrix during polymer manufacturing, In
the unlikely case that 4-MHHPA will reach sewage, the anhydride group,
which represents the single reactive and toxic functional moiety,
rapidly hydrolyses to the respective di-acid. Overall, it is expected
that 4-MHHPA will not be present in sewage sludge, will not be
distributed to sediment, and direct or indirect exposures of the aquatic
and terrestrial compartments are unlikely.
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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