2503-73-3

Basic information

• Product Name: Direct Blue 78
• Synonyms: C.I.34200;Kayarus Blue G;Sumilight Supra Blue G;Amanil Fast Blue 4GL;Belamine Fast Blue 4GL;Benzanil Supra Blue 4GL;Calcoform Blue 4GL;Chlorantine Fast Blue 4GL
• CAS NO: 2503-73-3
• Molecular Formula: C42H25N7Na4O13S4
• Molecular Weight: 1055.90608
• EINECS: 219-708-8
• Product Categories: Organics
• Mol File: 2503-73-3.mol
• Article Data: 0

Chemical Properties

• Appearance: /
• Density: 1.383[at 20℃]
• Vapor Pressure: 0Pa at 25℃
• Water Solubility: 10g/L at 20℃
• CAS DataBase Reference: Direct Blue 78(CAS DataBase Reference)
• NIST Chemistry Reference: Direct Blue 78(2503-73-3)
• EPA Substance Registry System: Direct Blue 78(2503-73-3)

Safety Data

• Hazardous Substances Data: 2503-73-3(Hazardous Substances Data)

Usage

Preparation

2-Aminobenzene-1,4-disulfonic acid diazo, and 8-Aminonaphthalene-2-sulfonic acid first coupling, its product to diazo, and Naphthalen-1-amine second coupling, again diazo, in alkaline conditions and 4-Hydroxy-7-(phenylamino)naphthalene-2-sulfonic acid third coupling.

Flammability and Explosibility

Notclassified

Properties and Applications

blue. Soluble in water for blue, solubility of 15 g/L (60 ℃), 30 g/L (97 ℃), soluble in soluble fiber element, slightly soluble in alcohol, insoluble in other organic solvents. The strong sulfuric acid in Red sauce for galleries to, diluted Red sauce for; In the light of nitric acid for palm gray. The dye solution to join strong hydrochloric acid for red light blue; Add thick sodium hydroxide solution for red light purple. Water-soluble good, colored light to blue. Dye in bath of copper, iron ion colored light basic unchanged. SDC classification for class B. Neutral white is very good, alkaline white. Mainly used for cotton or viscose dyeing and printing directly, and disperse dyestuffs with bath dyeing polyester/cotton blended fabric. Can also be used for paper, leather and biological dyeing. Standard Acid Resistance Alkali Resistance Light Fastness Soaping Water Fading Stain Fading Stain ISO 4 4-5 4-5 2-3 2-3 AATCC 5 4-5 5 3 3

Standard

Acid Resistance

Fading

Stain

ISO

4

AATCC

5

InChI:InChI=1/C42H29N7O13S4.4Na/c50-42-29-13-10-26(43-25-6-2-1-3-7-25)20-24(29)21-40(66(60,61)62)41(42)49-47-35-16-15-34(30-8-4-5-9-31(30)35)44-46-37-18-17-36(32-14-11-27(22-33(32)37)63(51,52)53)45-48-38-23-28(64(54,55)56)12-19-39(38)65(57,58)59;;;;/h1-23,43,50H,(H,51,52,53)(H,54,55,56)(H,57,58,59)(H,60,61,62);;;;/q;4*+1/p-4