Purpuric clothing dermatitis due to Disperse Yellow 27

Comment Contact sensitization to bufexamac is not rare, though often unknown or forgotten by the patient, but seems to be less frequent in our series than in previous reports (2, 3). Bufexamac (4-butoxy-N-hydroxy-benzeneacetamide) and diclofenac (2[(2,6-dichlorophenyl)amino]-benzeneacetic acid) both have a benzene ring, with an acetamide (bufexamac) or an acetic acid group (diclofenac) on the alkyl chain. This difference might explain the absence