Product Name: Direct Black 19 (35255)
Other Name: Direcr fast black G
CAS No.:6428-31-5
MF: C34H27N13Na2O7S2
MW: 839.77062
Origin: China
Type:Direct Dye
Usage: Used for dyeing Coton ,linen,viscose ,Paper,Silk ,Fiber,ect
Direct black is one of the direct dyes which is the dyestuff and can be applied in many fields.
Qingdao Langke Co., Ltd is one of the main supplier of pigment,dyestuff and their intermediates.
In the past 10 years, we have sold the products to more than 20 countries. Either acid dyes or direct dyes, or even pigment, they all gained good reputation.
To choose us as the partner, you will not be disappointed.