Yellow 2G is a food coloring denoted by E number E107 with the color index CI18965 . It has the appearance of a yellow powder, and it is soluble in water. It is a synthetic yellow azo dye .
Quick Facts Names, Identifiers ...
Yellow 2G
Names
IUPAC name
Disodium 2,5-dichloro-4-[3-methyl-5-oxo-4-(4-sulfonatophenyl)diazenyl-4H -pyrazol-1-yl]benzenesulfonate
Other names
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
Identifiers
ChEBI
ChemSpider
ECHA InfoCard 100.026.199
E number E107 (colours)
UNII
InChI=1S/C16H12Cl2N4O7S2.2Na/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);;/q;2*+1/p-2
Key: FTZLWXQKVFFWLY-UHFFFAOYSA-L
acid: 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+
Key: DWYWPBYWDAZKNX-FMQUCBEESA-L
CC1=NN(C(=O)C1N=NC2=CC=C(C=C2)S(=O)(=O)[O-])C3=CC(=C(C=C3Cl)S(=O)(=O)[O-])Cl.[Na+].[Na+]
Properties
C 16 H 10 N 4 Na 2 O 7 S 2
Molar mass g·mol−1
Except where otherwise noted, data are given for materials in their
standard state (at 25
°C [77
°F], 100
kPa).
Close
It is not listed by the UK's Food Standards Agency among EU approved food additives.[ 1] Austria , Japan , Norway , Sweden , Switzerland and the United States .[ citation needed ]
