| 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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