6-(5-Chloro-2-hydroxy-4-sulfophenylazo)-5-hydroxy-1-naphthalenesulfonic acid disodium salt
Synonym(s):6-(5-Chloro-2-hydroxy-3-sulfophenylazo)-5-hydroxy-1-naphthalenesulfonic acid disodium salt;6-(5-Chloro-2-hydroxy-4-sulfonphenylazo)-5-hydroxy-1-naphthalene-sulfonic acid sodium salt
- CAS NO.：3624-68-8
- Empirical Formula: C16H9ClN2Na2O8S2
- Molecular Weight: 502.81
- MDL number: MFCD00003940
- EINECS: 222-828-3
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-04-24 14:58:10
What is 6-(5-Chloro-2-hydroxy-4-sulfophenylazo)-5-hydroxy-1-naphthalenesulfonic acid disodium salt?
Chemical properties
dark blue fine crystalline powder
What are the applications of Application
Mordant blue 9 is an azo organosulfur dye
Preparation
3-Amino-5-chloro-2-hydroxybenzenesulfonic acid diazotization, and 5-Hydroxynaphthalene-1-sulfonic acid?coupling.
Properties and Applications
red light navy blue. This product soluble in water is purple, in the water solubility is 50 g/l (80 ℃), slightly soluble in alcohol. In concentrated sulfuric acid for blue purple, dilution to pink; In concentrated nitric acid for yellow brown. Its aqueous solution to join concentrated hydrochloric acid to red; With strong caustic for magenta. Mainly used for wool, silk, nylon dyeing and color matching dye.
| Standard | Ironing Fastness | Light Fastness | Fulling | Persperation Fastness | Soaping | Water | |
| Alkali | Acid | ||||||
| ISO | 5 | 6 | 4 | 4 | 4-5 | 4-5 | 4-5 |
| AATCC | 4-5 | 7 | 4 | 4-5 | 5 | ||
Properties of 6-(5-Chloro-2-hydroxy-4-sulfophenylazo)-5-hydroxy-1-naphthalenesulfonic acid disodium salt
| form | Fine Crystalline Powder |
| Colour Index | 14855 |
| color | Dark blue |
| EPA Substance Registry System | C.I. Mordant Blue 9, disodium salt (3624-68-8) |
Safety information for 6-(5-Chloro-2-hydroxy-4-sulfophenylazo)-5-hydroxy-1-naphthalenesulfonic acid disodium salt
Computed Descriptors for 6-(5-Chloro-2-hydroxy-4-sulfophenylazo)-5-hydroxy-1-naphthalenesulfonic acid disodium salt
| InChIKey | FBNOWTWLVCWGCZ-BUFQOAPZSA-L |
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