Yellow 2G

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
CAS Number	6359-98-4 Y
3D model (JSmol)	Interactive image
ChEBI	tautomer: CHEBI:90206 N
ChemSpider	3490830 Y
PubChem CID	22842 acid: 4284331
UNII	Y428W9WW4D Y
InChI 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
SMILES 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
Chemical formula	C16H10N4Na2O7S2
Molar mass	480.38 g·mol−1
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). N verify (what is YN ?) Infobox references

Yellow 2G is a food coloring denoted by E number E107 with the Colour Index CI18965. It has the appearance of a yellow powder, and it is soluble in water. It is a synthetic yellow azo dye.

It is not listed by the UK's Food Standards Agency among EU approved food additives. Its use is also banned in Austria, Japan, Norway, Sweden, Switzerland and the United States.

External links

Media related to Yellow 2G at Wikimedia Commons