1,-Naphthalenedisulfonic acid, 4,4'-[carbonylbis[imino(5-methoxy-2-methyl-4,1-phenylene)azo]]bis-, tetrasodium salt

CAS No.
8004-79-3
Chemical Name:
1,-Naphthalenedisulfonic acid, 4,4'-[carbonylbis[imino(5-methoxy-2-methyl-4,1-phenylene)azo]]bis-, tetrasodium salt
Synonyms
Direct Orange 69;C.I.Direct Orange 69:C.I.29055;1,-Naphthalenedisulfonic acid, 4,4'-[carbonylbis[imino(5-methoxy-2-methyl-4,1-phenylene)azo]]bis-, tetrasodium salt
CBNumber:
CB04745914
Molecular Formula:
C37H28N6Na4O15S4
Molecular Weight:
1016.8685
MDL Number:
MOL File:
8004-79-3.mol

1,-Naphthalenedisulfonic acid, 4,4'-[carbonylbis[imino(5-methoxy-2-methyl-4,1-phenylene)azo]]bis-, tetrasodium salt Chemical Properties,Uses,Production

Preparation

4-Aminonaphthalene-1,6-disulfonic acid?or 4-Aminonaphthalene-1,7-disulfonic acid?diazo, and 2-Amino-4-methylanisole coupling, and then make the light gasification.

Properties and Applications

orange. Soluble in water for orange, slightly soluble in alcohol. The strong sulfuric acid for blue, green light blue after diluted precipitation. The dye solution to join strong hydrochloric acid have hidden cyan precipitation; Add thick sodium hydroxide solution have orange precipitation. Used for cellulose fiber dyeing and printing, and can be used in the paper color. 80 ℃ with the biggest dyeing affinity, good levelness.

Standard Acid Resistance Alkali Resistance Light Fastness Soaping Water
Fading Stain Fading Stain
ISO 4-5 4 4-5 2-3 2-3

1,-Naphthalenedisulfonic acid, 4,4'-[carbonylbis[imino(5-methoxy-2-methyl-4,1-phenylene)azo]]bis-, tetrasodium salt Preparation Products And Raw materials

1,-Naphthalenedisulfonic acid, 4,4'-[carbonylbis[imino(5-methoxy-2-methyl-4,1-phenylene)azo]]bis-, tetrasodium salt C.I.Direct Orange 69:C.I.29055 Direct Orange 69 8004-79-3