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EC number: 243-072-0
CAS number: 19438-60-9
In a primary dermal irritation study,
rabbits were dermally exposed to 0.5 mL of 4 -MHHPA for 24 hours.
Reaction was assessed after 24 and 72 hours and assigned a numerical
score according to the Draize scale. .
A mean erythema score (24 - 72
hours),calculated over all 6 animals, for intact skin of 2.00 and for
abraded skin of 2.33 was observed. The oedema score was determined to
be 2.25 for intact skin and 2.67 for abraded skin.
Taking the test
conditions into account, in particular the 24 hour exposure period
compared with 4 hours of current test methods described in OECD TG
404, 4 -MHHPA has not to be classified and labelled as dermal irritant
according to CLP (1272/2008/EEC).
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