disodium 4,4'-[[2,4-dihydroxy-5-(hydroxymethyl)-1,3-phenylene]bis(azo)]bisnaphthalene-1-sulphonate
- CAS NO.：4553-89-3
- Empirical Formula: C27H18N4Na2O9S2
- Molecular Weight: 652.56276
- MDL number: MFCD01747711
- EINECS: 224-924-0
- SAFETY DATA SHEET (SDS)
- Update Date: 2023-04-23 13:52:06
![disodium 4,4'-[[2,4-dihydroxy-5-(hydroxymethyl)-1,3-phenylene]bis(azo)]bisnaphthalene-1-sulphonate Structural](https://img.chemicalbook.in/CAS/GIF/4553-89-3.gif)
What is disodium 4,4'-[[2,4-dihydroxy-5-(hydroxymethyl)-1,3-phenylene]bis(azo)]bisnaphthalene-1-sulphonate?
The Uses of disodium 4,4'-[[2,4-dihydroxy-5-(hydroxymethyl)-1,3-phenylene]bis(azo)]bisnaphthalene-1-sulphonate
Chocolate Brown HT (CAS# 4553-89-3) is a synthetic organic food colourant, and a long-term carcinogen.
Preparation
4-Hydroxynaphthalene-1-sulfonic acid (2 Moore) diazo, and 4-(Hydroxymethyl)benzene-1,3-diol?coupled.
Flammability and Explosibility
Non flammable
Properties and Applications
red light brown. Soluble in water for brown. The strong sulfuric acid for red purple, diluted chocolate brown for red precipitate to brown precipitation and the solution. Its water solution and strong hydrochloric acid for dark chocolate brown precipitation and the solution; Add sodium hydroxide solution for product red.
Properties of disodium 4,4'-[[2,4-dihydroxy-5-(hydroxymethyl)-1,3-phenylene]bis(azo)]bisnaphthalene-1-sulphonate
| Melting point: | >300o C |
| Density | 0.816[at 20℃] |
| vapor pressure | 0Pa at 25℃ |
| storage temp. | Hygroscopic, Refrigerator, Under inert atmosphere |
| solubility | DMSO (Slightly, Heated, Sonicated), Methanol (Slightly) |
| form | Solid |
| color | Pale Brown to Black |
| Water Solubility | 99.418g/L at 25℃ |
| Stability: | Hygroscopic |
Safety information for disodium 4,4'-[[2,4-dihydroxy-5-(hydroxymethyl)-1,3-phenylene]bis(azo)]bisnaphthalene-1-sulphonate
Computed Descriptors for disodium 4,4'-[[2,4-dihydroxy-5-(hydroxymethyl)-1,3-phenylene]bis(azo)]bisnaphthalene-1-sulphonate
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