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Agent Name Coumarin 7
CAS Number 27425-55-4
Formula C20-H19-N3-O2
Major Category Dyes
Synonyms 2H-1-Benzopyran-2-one, 3-(1H-benzimidazol-2-yl)-7-
(diethylamino)-; 3-(Benzimidazol-2-yl)-7-diethylaminocoumarin; Coumarin 7; Coumarin, 3-(2-benzimidazolyl)-7-(diethylamino)-; [ChemIDplus] 40 Yellow (disperse dye); [Ullmann]
Category Coumarins
Description Solid; [MSDSonline]
Sources/Uses Coumarins are used as fluorescent dyes and also as laser dyes. Fluorescent dyes not only absorb light; they also emit light to produce very bright colors. They are used to dye textile fibers, plastics, inks, and to make pigments for paints and lacquers. As a disperse dye, 40 Yellow is used to dye polyester fibers; [Ullmann: Laser Dyes; Fluorescent Dyes; Disperse Dyes]
Comments May cause skin and respiratory tract irritation; [MSDSonline] The 3 laser dyes tested for skin sensitization were found to be negative. [Reference #1]
Reference Link Blackwell Synergy - Contact Dermatitis, Volume 21 Issue 3 Page 141-147, September 1989 (Article Abstract)
Links to Other NLM Databases
Toxicity Information Search TOXNET
Chemical Information Search ChemIDplus
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Last updated: January, 2009