Benzoic acid, 3,3'-[1,2-ethanediylbis[(3-sulfo-4,1-phenylene)azo]]bis[6-hydroxy-, tetrasodium salt
Benzoic acid, 3,3'-[1,2-ethanediylbis[(3-sulfo-4,1-phenylene)azo]]bis[6-hydroxy-, tetrasodium salt Basic information
- Product Name:
- Benzoic acid, 3,3'-[1,2-ethanediylbis[(3-sulfo-4,1-phenylene)azo]]bis[6-hydroxy-, tetrasodium salt
- Synonyms:
-
- Benzoic acid, 3,3'-[1,2-ethanediylbis[(3-sulfo-4,1-phenylene)azo]]bis[6-hydroxy-, tetrasodium salt
- Direct Yellow 73
- C.I.Direct Yellow 73:C.I.24850
- CAS:
- 6459-73-0
- MF:
- C28H23N4NaO12S2
- MW:
- 694.62
- EINECS:
- 613-631-7
- Mol File:
- 6459-73-0.mol
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Benzoic acid, 3,3'-[1,2-ethanediylbis[(3-sulfo-4,1-phenylene)azo]]bis[6-hydroxy-, tetrasodium salt Usage And Synthesis
Preparation
1,2-Bis(4-nitro-2-sulfophenyl)ethane double nitriding, and 2-Hydroxybenzoic acid (2 Moore) coupled.
Properties and Applications
green light yellow. Soluble in water for green light yellow, slightly soluble in alcohol. The strong sulfuric acid for gold in orange, no change after diluted. The dye solution to join strong hydrochloric acid for orange, precipitation; With strong sodium hydroxide solution for gold orange.
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