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Optical Brightener SWN

Product Name: Optical Brightener SWN

Chemical Name: 7-(Diethylamino)-4-methyl-coumarin

CAS NO: 91-44-1

C.I. No.: 140

Synonyms: COUMARIN 1; 7-NEt2-4-CH3-coumarin; COUMARIN I; 7d4mc; aclarat8678; 2H-1-Benzopyran-2-one, 7-(diethylamino)-4-methyl-; hakkolp; c47; Coumalux; Coumarin 460; UVITEX WGS;

Optical Brightener SWN is applicable in wool, silk, acetate fiber, triacete fiber, etc.Also can be used in cotton, plstic and chromatically press paint and added into resin to whiten the fiber.

Specifications:

Apperance: White to light brown crystalline powder

Purity: 98%min

Ash: 0.5%max

Max.absorption wavelength: 375nm(in ethanol)

Packing: 25KG fiber drum