4553-89-3

Basic information

• Product Name: disodium 4,4'-[[2,4-dihydroxy-5-(hydroxymethyl)-1,3-phenylene]bis(azo)]bisnaphthalene-1-sulphonate
• Synonyms: 1538 Brown;C.I.20285;Certicol Brown N Extra;Cetricol Brown RS;Food Brown 3;Brown HT (technical product);disodium 4,4'-[[2,4-dihydroxy-5-(hydroxymethyl)-1,3-phenylene]bis(azo)]bisnaphthalene-1-sulphonate;Disodium-4,4-(2,4-Dihydroxy-5-HydroxyMethyl-1,3-PhenyleneBisazo)-Di(Naphthalene-1-Sulfonate)
• CAS NO: 4553-89-3
• Molecular Formula: C27H18N4Na2O9S2
• Molecular Weight: 652.56276
• EINECS: 224-924-0
• Mol File: 4553-89-3.mol
• Article Data: 0

Chemical Properties

• Appearance: /
• Density: 0.816[at 20℃]
• Vapor Pressure: 0Pa at 25℃
• Storage Temp.: Hygroscopic, Refrigerator, Under inert atmosphere
• Solubility: DMSO (Slightly, Heated, Sonicated), Methanol (Slightly)
• Water Solubility: 99.418g/L at 25℃
• Stability: Hygroscopic
• CAS DataBase Reference: disodium 4,4'-[[2,4-dihydroxy-5-(hydroxymethyl)-1,3-phenylene]bis(azo)]bisnaphthalene-1-sulphonate(CAS DataBase Reference)
• NIST Chemistry Reference: disodium 4,4'-[[2,4-dihydroxy-5-(hydroxymethyl)-1,3-phenylene]bis(azo)]bisnaphthalene-1-sulphonate(4553-89-3)
• EPA Substance Registry System: disodium 4,4'-[[2,4-dihydroxy-5-(hydroxymethyl)-1,3-phenylene]bis(azo)]bisnaphthalene-1-sulphonate(4553-89-3)

Safety Data

• Hazardous Substances Data: 4553-89-3(Hazardous Substances Data)

Usage

Uses

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

Nonflammable

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.