2,7-Naphthalenedisulfonic acid, 4-[(1-amino-5-hydroxynaphthalenyl)azo]-5-hydroxy-, disodium salt

Product Name
2,7-Naphthalenedisulfonic acid, 4-[(1-amino-5-hydroxynaphthalenyl)azo]-5-hydroxy-, disodium salt
CAS No.
1323-94-0
Chemical Name
2,7-Naphthalenedisulfonic acid, 4-[(1-amino-5-hydroxynaphthalenyl)azo]-5-hydroxy-, disodium salt
Synonyms
Acid Blue 70;C.I.Acid Blue 70:C.I.17000;2,7-Naphthalenedisulfonic acid, 4-[(1-amino-5-hydroxynaphthalenyl)azo]-5-hydroxy-, disodium salt
CBNumber
CB94748271
Molecular Formula
C20H13N3Na2O8S2
Formula Weight
533.44206
MOL File
1323-94-0.mol
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Hazard and Precautionary Statements (GHS)

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2,7-Naphthalenedisulfonic acid, 4-[(1-amino-5-hydroxynaphthalenyl)azo]-5-hydroxy-, disodium salt Chemical Properties,Usage,Production

Preparation

4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid?diazo, and 5-Aminonaphthalen-1-ol?in acetic acid medium coupling.

Properties and Applications

green light blue. Soluble in water for purple. The strong sulfuric acid in blue, diluted began to change color, and then into a purple. In water solution to join hydrochloric acid colour and lustre is basic unchanged; Add thick sodium hydroxide solution for orange.

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

2,7-Naphthalenedisulfonic acid, 4-[(1-amino-5-hydroxynaphthalenyl)azo]-5-hydroxy-, disodium salt Preparation Products And Raw materials

Raw materials

Preparation Products

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2,7-Naphthalenedisulfonic acid, 4-[(1-amino-5-hydroxynaphthalenyl)azo]-5-hydroxy-, disodium salt Suppliers

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1323-94-0, 2,7-Naphthalenedisulfonic acid, 4-[(1-amino-5-hydroxynaphthalenyl)azo]-5-hydroxy-, disodium saltRelated Search:

4-Amino-3-[(4-amino-2-nitrophenyl)azo]-5-hydroxy-2,7-naphthalenedisulfonic acid disodium salt ACID BLUE 59 C.I. Acid Blue 68 ACID BLUE 62 Indigo Carmine ERIOCYANINE A 9-[(4-Amino-2-sodiosulfophenyl)amino]-11-methyl-7-phenyl-5-phenylamino-4-sulfonatobenzo[a]phenazin-7-ium disodium 4,5-diamino-9,10-dihydro-1,8-dihydroxy-9,10-dioxoanthracene-2,7-disulphonate ALPHAZURINE A

  • 2,7-Naphthalenedisulfonic acid, 4-[(1-amino-5-hydroxynaphthalenyl)azo]-5-hydroxy-, disodium salt
  • Acid Blue 70
  • C.I.Acid Blue 70:C.I.17000
  • 1323-94-0