2,6-Naphthalenedisulfonic acid, 4-hydroxy-3-[(2-methoxy-5-methylphenyl)azo]-, disodium salt

CAS No.
5864-85-7
Chemical Name:
2,6-Naphthalenedisulfonic acid, 4-hydroxy-3-[(2-methoxy-5-methylphenyl)azo]-, disodium salt
Synonyms
C.I.Acid Red 22:C.I.14940;2,6-Naphthalenedisulfonic acid, 4-hydroxy-3-[(2-methoxy-5-methylphenyl)azo]-, disodium salt
CBNumber:
CB24768940
Molecular Formula:
C18H17N2NaO8S2
Molecular Weight:
476.45
MDL Number:
MOL File:
5864-85-7.mol

2,6-Naphthalenedisulfonic acid, 4-hydroxy-3-[(2-methoxy-5-methylphenyl)azo]-, disodium salt Chemical Properties,Uses,Production

Preparation

2-Amino-4-methylanisole diazo, and 1-Naphthol-3,7-disulfonic acid?coupling

Properties and Applications

red. Soluble in water for product red, and adequate soluble in alcohol in red. The strong sulfuric acid for purple, diluted red for quality. In aqueous solution to join strong hydrochloric acid for product red; Add sodium hydroxide into a brown.

Standard Light Fastness Soaping Persperation Fastness Oxygen bleaching Fastness to seawater
Fading Stain Fading Stain Fading Stain
ISO 4 4 3 2-3 1 2-3

2,6-Naphthalenedisulfonic acid, 4-hydroxy-3-[(2-methoxy-5-methylphenyl)azo]-, disodium salt Preparation Products And Raw materials

2,6-Naphthalenedisulfonic acid, 4-hydroxy-3-[(2-methoxy-5-methylphenyl)azo]-, disodium salt C.I.Acid Red 22:C.I.14940 5864-85-7