2,7-Naphthalenedisulfonic acid, 3-amino-4-[[4'-[(4-ethoxyphenyl)azo]-3,3'-dimethyl[1,1'-biphenyl]-4-yl]azo]-, disodium salt

CAS No.
6470-22-0
Chemical Name:
2,7-Naphthalenedisulfonic acid, 3-amino-4-[[4'-[(4-ethoxyphenyl)azo]-3,3'-dimethyl[1,1'-biphenyl]-4-yl]azo]-, disodium salt
Synonyms
Direct Orange 13;C.I.Direct Orange 13:C.I.23605;2,7-Naphthalenedisulfonic acid, 3-amino-4-[[4'-[(4-ethoxyphenyl)azo]-3,3'-dimethyl[1,1'-biphenyl]-4-yl]azo]-, disodium salt
CBNumber:
CB34750049
Molecular Formula:
C32H27N5Na2O7S2
Molecular Weight:
703.69562
MDL Number:
MOL File:
6470-22-0.mol

2,7-Naphthalenedisulfonic acid, 3-amino-4-[[4'-[(4-ethoxyphenyl)azo]-3,3'-dimethyl[1,1'-biphenyl]-4-yl]azo]-, disodium salt Chemical Properties,Uses,Production

Preparation

3,3′-Dimethylbenzidine double nitriding, first coupling with 3-Aminonaphthalene-2,7-disulfonic acid, again with phenolcoupling, and then under the pressure of monomer (VCM) and heat, make phenol hydroxyl into b oxygen radicals.

Properties and Applications

red light orange. Soluble in water for orange to brown orange, soluble in ethanol for gold orange. In the strong sulfuric acid as dark blue, diluted red for ash brown, with black precipitation. The dye solution to join strong hydrochloric acid for olive brown, have precipitation; Add thick sodium hydroxide solution for palm light orange, precipitation. Used for cellulose fiber, silk, polyamide, wool dyeing, cellulose, silk and wool printing, also can be used for leather and paper color. Exhaust dyeing and good levelness.

Standard Acid Resistance Alkali Resistance Light Fastness Soaping Water
Fading Stain Fading Stain
ISO 1-2 5 3 1-2 1-2
AATCC 1 5 2-3 1 2

2,7-Naphthalenedisulfonic acid, 3-amino-4-[[4'-[(4-ethoxyphenyl)azo]-3,3'-dimethyl[1,1'-biphenyl]-4-yl]azo]-, disodium salt Preparation Products And Raw materials

Raw materials

Preparation Products

2,7-Naphthalenedisulfonic acid, 3-amino-4-[[4'-[(4-ethoxyphenyl)azo]-3,3'-dimethyl[1,1'-biphenyl]-4-yl]azo]-, disodium salt C.I.Direct Orange 13:C.I.23605 Direct Orange 13 6470-22-0