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EC number: 203-742-5
CAS number: 110-16-7
Two studies on skin sensitisation are
available for maleic acid. Maleic acid was sensitising in a guinea pig
maximisation test as well as in a local lymph node assay.
According to the results of the studies
available maleic acid has to be classified as "R43 May cause
sensitisation by skin contact" / "Skin sensitisation Category 1".
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