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

Coumarin Dyes

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] See "Coumarin."

Reference Link

Blackwell Synergy - Contact Dermatitis, Volume 21 Issue 3 Page 141-147, September 1989 (Article Abstract)

Links to Other NLM Databases
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Chemical Information

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Processes

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