Yellow 2G Properties, Molecular Formula, Applications - WorldOfChemicals

Yellow 2G Properties

Yellow 2G

Molecule Structure Image



Yellow 2G is a synthetic yellow azo dye. It is used for food coloring . It appears to cause allergic or intolerant reactions, particularly amongst those with an aspirin intolerance and asthma sufferers. It is one of the colors that the Hyperactive Children's Support Group recommends be eliminated from the diet of children. It is not listed by the UK's Food Standards Agency among EU approved food additives. Its use is banned in Austria, Japan, Norway, Sweden, Switzerland and the United States.

Chemical Properties

Appearance Yellow powder
CAS Number 6359-98-4
EINECS Number 228-819-0
IUPAC Name Disodium 2,5-dichloro-4-[3-methyl-5-oxo-4-(4-sulfonatophenyl)diazenyl-4H-pyrazol-1-yl]benzenesulfonate
InChI 1S/C16H12Cl2N4O7S2/c1-8-15(20-19-9-2-4-10(5-3-9)30(24,25)26)16(23)22(21-8)13-6-12(18)14(7-11(13)17)31(27,28)29/h2-7,15H,1H3,(H,24,25,26)(H,27,28,29)/p-2/b20-19+
Molar Mass 551.29 g/mol
Molecular Formula C16H10Cl2N4Na2O7S2
Solubility Soluble
Synonyms Benzenesulfonic acid,2,5-dichloro-4-[4,5-dihydro-3-methyl-5-oxo-4-[2-(4-sulfophenyl)diazenyl]-1H-pyrazol-1-yl]-,sodium salt;Lissamine Fast Yellow;C.I. Acid Yellow 17;C.I. 18965;Light Fast Yellow 2G;C.I. Food Yellow 5;Acid Leather Yellow 2GL;Erio Flavine SX;Fenalan Yellow G;Erio Flavine 3G;Kayacyl Yellow GG;Yellow 2G