Company News Market Information

Optical Brightener Agent SWN

Mar. 11, 2019

C.I.: 140, CAS No.: 91-44-1,

Chemical name: 7-diethylamino-4-methylcoumarin, 7-(Diethylamino)-4-methyl-2H-1-benzopyran-2-one, Methyl-7-(diethylamino)coumarin, Coumarin 1, MDAC

Molecular formula: C14H17NO2

Molecular weight: 231.3

EINECS: 202-068-9

Appearance: White crystal powder

Solubility: Dissolve in acid water, ethanol and other organic solvent

Melting Point: 72-74° C

Assay: 99% min (HPLC)

Volatile Content: 0.3%max

Ash Content: 0.1%max

Application:

It is used in brightening acetate fiber, polyester fiber, polyamide fiber, acetic acid fiber and wool. It also can be used in cotton, plastic and chromatically press paint, and added into resin to whiten the fiber cellulose.


Optical Brightener Agent SWN