2-Hydroxy-5-[(6,8-disulfo-2-naphtyl)azo]benzoic acid trisodium salt
- CAS NO.：6471-07-4
- Empirical Formula: C17H13N2NaO9S2
- Molecular Weight: 476.41
- SAFETY DATA SHEET (SDS)
![2-Hydroxy-5-[(6,8-disulfo-2-naphtyl)azo]benzoic acid trisodium salt Structural](https://img.chemicalbook.in/CAS/GIF/6471-07-4.gif)
What is 2-Hydroxy-5-[(6,8-disulfo-2-naphtyl)azo]benzoic acid trisodium salt?
Preparation
7-Aminonaphthalene-1,3-disulfonic acid diazotization, and 2-Hydroxybenzoic acid coupling.
Properties and Applications
dark red light yellow. Soluble in water for green light yellow, insoluble in other organic solvent. In concentrated sulfuric acid for brown light orange, dilution after green yellow. Dye aqueous solution and concentrated hydrochloric acid for yellow; Sodium hydroxide solution with strong to orange.
| Standard | Ironing Fastness | Light Fastness | Fulling | Persperation Fastness | Soaping | Water | |
| Alkali | Acid | ||||||
| ISO | 4 | 5 | 4 | 5 | 5 | 5 | |
| AATCC | 4 | 6 | 4-5 | 5 | 5 | 5 | |
Properties of 2-Hydroxy-5-[(6,8-disulfo-2-naphtyl)azo]benzoic acid trisodium salt
| EPA Substance Registry System | Benzoic acid, 5-[(6,8-disulfo-2-naphthalenyl)azo]-2-hydroxy-, trisodium salt (6471-07-4) |
Safety information for 2-Hydroxy-5-[(6,8-disulfo-2-naphtyl)azo]benzoic acid trisodium salt
Computed Descriptors for 2-Hydroxy-5-[(6,8-disulfo-2-naphtyl)azo]benzoic acid trisodium salt
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product: 6471-07-4 Mordant yellow 20 98%
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