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Allergic contact sensitivity to quinophthalone
Author(s) -
Komamura H.,
Kozuka T.,
Ishii M.,
Yoshikawa K.,
Iyoda M.
Publication year - 1989
Publication title -
contact dermatitis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.524
H-Index - 96
eISSN - 1600-0536
pISSN - 0105-1873
DOI - 10.1111/j.1600-0536.1989.tb04653.x
Subject(s) - allergic contact dermatitis , contact dermatitis , seborrheic dermatitis , dermatology , contact allergy , patch testing , hair dyes , medicine , chemistry , chromatography , allergy , organic chemistry , immunology , dyeing
A 73‐year‐old patient, diagnosed as having seborrheic dermatitis, was patch tested with his hair preparations. The hair stick gave a positive reaction. Among its ingredients, D & C Yellow No. 11, from 0.0001% to 0.1%, and perfume showed positive reactions. D & C Yellow No. 11 was found to consist only of quinophthalone by chemical analyses. The concentration of quinophthalone in the hair stick was determined as 9.41 ppm w/w by high‐performance liquid chromatography.