5,5'-[1,4-Phenylenebis(azo)]bis[2-hydroxy-3-sodiosulfobenzoic acid sodium] salt
- CAS NO.：6492-53-1
- Empirical Formula: C20H15N4NaO12S2
- Molecular Weight: 590.47
- SAFETY DATA SHEET (SDS)
- Update Date: 2025-12-31 14:38:37
![5,5'-[1,4-Phenylenebis(azo)]bis[2-hydroxy-3-sodiosulfobenzoic acid sodium] salt Structural](https://img.chemicalbook.in/CAS/20211123/GIF/6492-53-1.gif)
What is 5,5'-[1,4-Phenylenebis(azo)]bis[2-hydroxy-3-sodiosulfobenzoic acid sodium] salt?
Preparation
4-Nitrobenzenamine diazotization, and 2-Hydroxybenzoic acid?coupling ,?Reducing the nitro group, and then diazotization, coupling with 2-Hydroxybenzoic acid, and then sulfonated.
Properties and Applications
orange. Soluble in water for golden yellow, not soluble in ethanol. In concentrated sulfuric acid to red light purple, after dilution for green yellow until golden brown. Dye aqueous solution to join concentrated hydrochloric acid for green yellow until golden brown, Join concentrated sodium hydroxide solution for ruby red.
| Standard | Ironing Fastness | Light Fastness | Fulling | Persperation Fastness | Soaping | Water | |
| Alkali | Acid | ||||||
| ISO | 5 | 5 | 4 | 5 | |||
Properties of 5,5'-[1,4-Phenylenebis(azo)]bis[2-hydroxy-3-sodiosulfobenzoic acid sodium] salt
| EPA Substance Registry System | Benzoic acid, 3,3'-[1,4-phenylenebis(azo)]bis[6-hydroxy-5-sulfo-, tetrasodium salt (6492-53-1) |
Safety information for 5,5'-[1,4-Phenylenebis(azo)]bis[2-hydroxy-3-sodiosulfobenzoic acid sodium] salt
Computed Descriptors for 5,5'-[1,4-Phenylenebis(azo)]bis[2-hydroxy-3-sodiosulfobenzoic acid sodium] salt
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