5,5'-[1,4-Phenylenebis(azo)]bis[2-hydroxy-3-sodiosulfobenzoic acid sodium] salt

CAS NO.：6492-53-1
Empirical Formula: C20H15N4NaO12S2
Molecular Weight: 590.47
SAFETY DATA SHEET (SDS)

What is 5,5'-[1,4-Phenylenebis(azo)]bis[2-hydroxy-3-sodiosulfobenzoic acid sodium] salt?

Preparation

4-Nitrobenzenamine diazotization, and 2-Hydroxybenzoic acid?coupling ,?Reducing the nitro group, and then diazotization, coupling with 2-Hydroxybenzoic acid, and then sulfonated.

Properties and Applications

orange. Soluble in water for golden yellow, not soluble in ethanol. In concentrated sulfuric acid to red light purple, after dilution for green yellow until golden brown. Dye aqueous solution to join concentrated hydrochloric acid for green yellow until golden brown, Join concentrated sodium hydroxide solution for ruby red.

Standard	Ironing Fastness	Light Fastness	Fulling		Persperation Fastness	Soaping	Water
			Alkali	Acid
ISO		5			5	4	5

Properties of 5,5'-[1,4-Phenylenebis(azo)]bis[2-hydroxy-3-sodiosulfobenzoic acid sodium] salt

EPA Substance Registry System

Benzoic acid, 3,3'-[1,4-phenylenebis(azo)]bis[6-hydroxy-5-sulfo-, tetrasodium salt (6492-53-1)

Safety information for 5,5'-[1,4-Phenylenebis(azo)]bis[2-hydroxy-3-sodiosulfobenzoic acid sodium] salt

Computed Descriptors for 5,5'-[1,4-Phenylenebis(azo)]bis[2-hydroxy-3-sodiosulfobenzoic acid sodium] salt

New Products

COBALT AAS SOLUTION HYDROXYLAMINE HYDROCHLORIDE SOLUTION 10% THOMALIT BLUE LITMUS PAPER 1 BOX SILVER NITRATE N/10 CVS GLASS BEADS 3.5 TO 4.5 MM POTASSIUM AAS SOLUTION Azithromycin Imp D Atracurium Besylate EP Impurity C Ceftaroline fosamil Acetate Hydrate Clarithromycin EP impurity F Clarithromycin EP Impurity D Clindamycin B

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