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EC number: 201-539-6
CAS number: 84-54-8
Patch test was performed to evaluate the
sensitization potential of the test chemical among workers working in a
A group of 72 furniture factory
workers were investigated with the history of allergic contact eczema
caused by true teak (Tectona grandis). All the 72 workers were
interviewed and examined for skin lesions. For this purpose a Patch test
was performed with native teak dust. The patch were applied for 24 hours
on the volar side of the left forearm and read at the end of this period
and read again after 48 and 72 hours. A challenge exposure was performed
on the workers who showed allergic reactions. The patch was applied at
the concentration of 0.1, 0.5, 1 and 2% test chemical. Acetone was used
as vehicle.The interpretation of the patch tests was based on the usual
criteria and was recorded as allergic, toxic, or negative.Identical Patch
tests were applied on 10 controls. No skin sensitization effects were
observed in test group or control group. Therefore, the test chemical
was considered to be not sensitizing to human skin.
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