disodium 7-hydroxy-8-[[4-[(4-sulphonatophenyl)azo]phenyl]azo]naphthalene-2-sulphonate

disodium 7-hydroxy-8-[[4-[(4-sulphonatophenyl)azo]phenyl]azo]naphthalene-2-sulphonate  Structure
CAS No.
6226-74-0
Chemical Name:
disodium 7-hydroxy-8-[[4-[(4-sulphonatophenyl)azo]phenyl]azo]naphthalene-2-sulphonate
Synonyms
C.I.27155;Acid Red 70;C.I.Acid Red 70;Acid red 70 (C.I. 27155);C.I.Acid Red 70:C.I.27155;disodium 7-hydroxy-8-[[4-[(4-sulphonatophenyl)azo]phenyl]azo]naphthalene-2-sulphonate;7-Hydroxy-8-[[4-[(4-sodiosulfophenyl)azo]phenyl]azo]naphthalene-1-sulfonic acid sodium salt
CBNumber:
CB2918367
Molecular Formula:
C22H14N4Na2O7S2
Molecular Weight:
556.4787
MOL File:
6226-74-0.mol

disodium 7-hydroxy-8-[[4-[(4-sulphonatophenyl)azo]phenyl]azo]naphthalene-2-sulphonate Chemical Properties,Uses,Production

Preparation

4-((4-Aminophenyl)diazenyl)benzenesulfonic acid diazo, and 7-Hydroxynaphthalene-1-sulfonic acid coupling.

Properties and Applications

colourful yellow red. Soluble in water and ethanol to the red orange. The strong sulfuric acid in blue, diluted into pink. In water solution to join strong hydrochloric acid is palm orange; Add thick sodium hydroxide solution for dark purple.

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

disodium 7-hydroxy-8-[[4-[(4-sulphonatophenyl)azo]phenyl]azo]naphthalene-2-sulphonate Preparation Products And Raw materials

disodium 7-hydroxy-8-[[4-[(4-sulphonatophenyl)azo]phenyl]azo]naphthalene-2-sulphonate Suppliers

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Shaanxi Didu New Material Co., Ltd 029-81145920 15353716720 China 10003 58 Inquiry
Supplier Advantage
Shaanxi Didu New Material Co., Ltd 58
disodium 7-hydroxy-8-[[4-[(4-sulphonatophenyl)azo]phenyl]azo]naphthalene-2-sulphonate Acid red 70 (C.I. 27155) 7-Hydroxy-8-[[4-[(4-sodiosulfophenyl)azo]phenyl]azo]naphthalene-1-sulfonic acid sodium salt C.I.27155 C.I.Acid Red 70 Acid Red 70 C.I.Acid Red 70:C.I.27155 6226-74-0