Benzoic acid,2-hydroxy-5-[2-(4-sulfo-1-naphthalenyl)diazenyl]-, sodium salt (1:2)
- CAS NO.：6408-85-1
- Empirical Formula: C17H12N2Na2O6S**
- Molecular Weight: 418.33152
- SAFETY DATA SHEET (SDS)
![Benzoic acid,2-hydroxy-5-[2-(4-sulfo-1-naphthalenyl)diazenyl]-, sodium salt (1:2) Structural](https://img.chemicalbook.in/CAS/20180808/GIF/6408-85-1.gif)
What is Benzoic acid,2-hydroxy-5-[2-(4-sulfo-1-naphthalenyl)diazenyl]-, sodium salt (1:2)?
Preparation
4-Aminonaphthalene-1-sulfonic acid diazotization, and 2-Hydroxybenzoic acid coupling.
Properties and Applications
dark red light yellow. Soluble in water for green light yellow, moderate soluble in ethanol for green yellow. In concentrated sulfuric acid for magenta, yellow as after diluted. Dye aqueous solution to join concentrated hydrochloric acid for yellow; Join concentrated Sodium hydroxide solution for yellow brown.
| Standard | Ironing Fastness | Light Fastness | Fulling | Persperation Fastness | Soaping | Water | |
| Alkali | Acid | ||||||
| ISO | 2-3 | 4-5 | 4-5 | 5 | 4-5 | 5 | |
Safety information for Benzoic acid,2-hydroxy-5-[2-(4-sulfo-1-naphthalenyl)diazenyl]-, sodium salt (1:2)
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![Benzoic acid, 2-hydroxy-5-[(4'-hydroxy[1,1'-biphenyl]-4-yl)azo]-, monosodium salt](https://img.chemicalbook.in/CAS/20200331/GIF/6535-41-7.gif)
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