Coumarin 7
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. [Blackwell Synergy - Contact Dermatitis, Volume 21, Issue 3, Page 141-147, September 1989] See "Coumarin."
Biomedical References
Diseases, Processes, and Activities Linked to This Agent
Processes
Industrial Processes with risk of exposure: