Identification | Back Directory | [Name]
disodium 4,4'-[[2,4-dihydroxy-5-(hydroxymethyl)-1,3-phenylene]bis(azo)]bisnaphthalene-1-sulphonate | [CAS]
4553-89-3 | [Synonyms]
Brown HT C.I.20285 LS-194959 1538 Brown CIFOODBROWN3 Food Brown 3 Cetricol Brown RS Certicol Brown N Extra C.I.Food Brown 3:C.I.20285 Brown HT (technical product) Chocolate Brown HT (Technical Grade) disodium 4,4'-[[2,4-dihydroxy-5-(hydroxymethyl)-1,3-phe Disodium-4,4-(2,4-Dihydroxy-5-HydroxyMethyl-1,3-PhenyleneBisazo)-Di(Naphthalene-1-Sulfonate) disodium 4,4'-[[2,4-dihydroxy-5-(hydroxymethyl)-1,3-phenylene]bis(azo)]bisnaphthalene-1-sulphonate 1-Naphthalenesulfonic acid, 4,4-2,4-dihydroxy-5-(hydroxymethyl)-1,3-phenylenebis(azo)bis-, disodium salt Sodium 4,4'-((2,4-dihydroxy-5-(hydroxymethyl)-1,3-phenylene)bis(diazene-2,1-diyl))bis(naphthalene-1-sulfonate) | [EINECS(EC#)]
224-924-0 | [Molecular Formula]
C27H18N4Na2O9S2 | [MDL Number]
MFCD01747711 | [MOL File]
4553-89-3.mol | [Molecular Weight]
652.563 |
Chemical Properties | Back Directory | [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 | [LogP]
4.496 at 25℃ |
Hazard Information | Back Directory | [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. |
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