Formula	CAS
C14H12O6S	4065-45-6

Background
2-hydroxy-4-methoxy-5-sulfonic acid (Sulisobenzone) is a UV-absorbing agent used in commercially available sunscreens. Sulisobenzone is one of three benzophenones approved for use in sunscreens in the United States and was the first to achieve significant usage. The benzophenones are a group of UV-absorbing diphenylketones originally utilized as a coating for materials in industry to protect from discoloration. Twelve benzophenones are used in this country and are designated as benzophenones 1 through 12.

Synonyms
2-Benzoyl-5-methoxy-1-phenol-4-sulfonic acid
2-Hydroxy-4-methoxybenzophenon-5-sulfonic acid
2-Hydroxy-4-methoxy-5-sulfonic acid
3-Benzoyl-4-hydroxy-6-methoxybenzenesulfonic acid
5-Benzoyl-4-hydroxy-2-methoxybenzenesulphonic acid
Benzophenone 4
Cyasorb UV 284
Lowilite 20 S
NSC-60584
Spectra-Sorb UV 284
Sulsisobenzone
Sungard
Uval
Uvinul MS-40
Uvistat 1121

Uses
Cosmetics
Lipsticks and lip balms
Lithographic plate coatings
Moisturizers
Nail polish
Paints
Pesticides
Plastics
Shampoos and other hair care products
Sunscreens
Textiles
Wool

Cross-Reactions
Oxybenzone
Benzophenone 2

Unusual Reactions

Back to list of contact allergens


Auteur(s):
dr. Jan R. Mekkes. Dermatoloog, Amsterdam UMC.