title: Contact allergy to an optical whitener, "CPY", in washing powders.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000485:Allergens; D000818:Animals; D001593:Benzyl Compounds / Q000009:adverse effects; D002648:Child; D002675:Child, Preschool; D004396:Coloring Agents / Q000009:adverse effects*; D003877:Dermatitis, Contact / Q000209:etiology*; D005260:Female; D006168:Guinea Pigs; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D008875:Middle Aged; D011720:Pyrazoles / Q000009:adverse effects*; D012459:Salicylates / Q000009:adverse effects; D012882:Skin Tests
chemical_list: D000485:Allergens; D001593:Benzyl Compounds; D004396:Coloring Agents; D011720:Pyrazoles; D012459:Salicylates