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1-Naphthalenesulfonic acid, 4,5-dihydroxy-3-[(4-sulfophenyl)azo]-, disodium salt

1-Naphthalenesulfonic acid, 4,5-dihydroxy-3-[(4-sulfophenyl)azo]-, disodium salt Structure
1-Naphthalenesulfonic acid, 4,5-dihydroxy-3-[(4-sulfophenyl)azo]-, disodium salt structure
CAS No.
5850-50-0
Chemical Name:
1-Naphthalenesulfonic acid, 4,5-dihydroxy-3-[(4-sulfophenyl)azo]-, disodium salt
Synonyms
Acid Red 31;C.I.Acid Red 31:C.I.16540;1-Naphthalenesulfonic acid, 4,5-dihydroxy-3-[(4-sulfophenyl)azo]-, disodium salt
CBNumber:
CB04793995
Molecular Formula:
C16H10N2Na2O8S2
Molecular Weight:
468.36874
MDL Number:
MOL File:
5850-50-0.mol
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1-Naphthalenesulfonic acid, 4,5-dihydroxy-3-[(4-sulfophenyl)azo]-, disodium salt Chemical Properties,Uses,Production

Preparation

2-Aminobenzenesulfonic acid diazo, and 4,5Dihydroxynaphthalene-1-sulfonic acid?coupling.

Properties and Applications

blue-ray red. Soluble in water for wine red, hardly soluble in alcohol. The strong sulfuric acid for dark purple, diluted red wine. In water solution to join strong hydrochloric acid for the red; Add sodium hydroxide into wine red to the deep red.

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

1-Naphthalenesulfonic acid, 4,5-dihydroxy-3-[(4-sulfophenyl)azo]-, disodium salt Preparation Products And Raw materials

Raw materials

Aniline-2-sulfonic acid 4,5-dihydroxynaphthalene-1-sulphonic acid

Preparation Products

5850-50-0(1-Naphthalenesulfonic acid, 4,5-dihydroxy-3-[(4-sulfophenyl)azo]-, disodium salt)Related Search:

C.I. Acid Red 316(8CI,9CI) ACID RED 299 Acid Red 315 hydrogen bis[1-[(5-(aminosulphonyl)-2-hydroxyphenyl)azo]2-naphtholato(2-)]chromate(1-) CHROMOTROPE 2R
4-Hydroxy-3-(1-naphthalenylazo)-2,7-naphthalenedisulfonic acid disodium salt sodium 5-[2-[5-chloro-2-(4-methylphenyl)sulfonyl-phenyl]hydrazinyl]-6-imino-4-oxo-naphthalene-2-sulfonate Acid Red 30 Acid Red 308

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1-Naphthalenesulfonic acid, 4,5-dihydroxy-3-[(4-sulfophenyl)azo]-, disodium salt Acid Red 31 C.I.Acid Red 31:C.I.16540 5850-50-0