Brown HT

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Brown HT
Brown HT structure.png
IUPAC name
Disodium 4-[(2E)-2-[(5Z)-3-(hydroxymethyl)-2,6-dioxo-5-[(4-sulfonatonaphthalen-1-yl)hydrazinylidene]-1-cyclohex-3-enylidene]hydrazinyl]naphthalene-1-sulfonate
Other names
Chocolate Brown HT, Food Brown 3, C.I. 20285, E155
ChEMBL ChEMBL1697823
ChemSpider 21172062
Jmol-3D images Image
PubChem 6536776
Molar mass 652.56 g/mol
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Brown HT, also called Chocolate Brown HT, Food Brown 3, and C.I. 20285, is a brown synthetic coal tar diazo dye.

When used as a food dye, its E number is E155. It is used to substitute cocoa or caramel as a colorant. It is used mainly in chocolate cakes, but also in milk and cheeses, yogurts, jams, fruit products, fish, and other products.[1] It may provoke allergic reactions in asthmatics, people sensitive to aspirin, and other sensitive individuals, and may induce skin sensitivity.[citation needed]

It is one of the food colorings that the Hyperactive Children's Support Group recommends be eliminated from the diet of children. It is banned in Austria, Belgium, Denmark, France, Germany, United States, Norway, Switzerland, and Sweden.[2]

It is used in nearly every major brand of chocolate flavoured milk in Australia.[citation needed]


  1. ^ Brown HT, Report of the 33rd Session of the Codex Committee on Food Additives
  2. ^ E155, UK Food Guide