Purchase Qty. Reference FOB Price
1-99 kg US$10.00
100-999 kg US$5.00
1,000+ kg US$1.00
Product Description
Product Description High Quality Fine Chemical 7-Diethylamino-4-methylcoumarin CAS 91-44-1 Fluorescent brightener SWN is soluble in ethanol, glycol, acidic liquor, resin and varnish. It functions by emitting red light and present purple tincture. This product is used for whitening wool, ...