CAS NO. 3441-14-3
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Milestone Industrial Co. Ltd. specializes in the production of direct dyes for more than 20 years. It has professional technical departments and quality supervision departments, well-equipped laboratories, and advanced testing equipment. The direct dyes produced have a wide range of applications; among them, Direct red is produced 23 Newest CAS NO. 3441-14-3, has applications in fiber, silk, cotton spinning, leather and other industries, with stable performance.
Direct red 23
Other product names: Scarlet 4BS; Direct Scarlet 4BS
CAS NO. 3441-14-3
Molecular formula: C35H27N7O10S2
Molecular weight: 769.7598
EINECS number: 222-348-4
Application of Direct red 23 Newest CAS NO. 3441-14-3:
Direct red 23 Newest CAS NO. 3441-14-3 is mainly used for the dyeing and printing of cotton, viscose, linen and other fiber fabrics, as well as silk and wool dyeing;
Direct red 23 Newest CAS NO. 3441-14-3 can be used to dye paper and leather, and can also be used to make lake pigments.
Direct red 23 Newest CAS NO. 3441-14-3 can be used alone in dyeing scarlet and madder, and can also be used in color matching with dyes such as yellow, orange, red, and brown.
The production method of Direct red 23 Newest CAS NO. 3441-14-3:
Direct red 23 Newest CAS NO. 3441-14-3 is obtained by diazotizing aniline and p-aminoacetophenone, coupling with scarlet acid, then salting out, filtering and drying. Raw material consumption (kg/t) aniline 55 scarlet acid (100%) 330 p-aminoacetanilide (100%) 95 hydrochloric acid (31%) 380 sodium nitrite (100%) 110 soda ash (industrial) 170 refined salt 210 sodium hydroxide ( 100%) 85.
The direct dyes produced by MST mainly include direct red, direct yellow, direct blue, direct orange, direct fast red, direct fast yellow, direct fast blue, etc.; the direct dyes have a complete range and can be customized according to customer needs. Recommend and customize according to different materials for printing and dyeing.