Red 2G

Red 2G

Names
Other names Acid Red 1 Food Red 10 Amidonaphthol red G azogeranine azophloxine azofloxin C.I. 18050
Identifiers
CAS Number	3734-67-6 Y
3D model (JSmol)	Interactive image
ChemSpider	21106472 Y
ECHA InfoCard	100.020.999
E number	E128 (colours)
PubChem CID	6507024
UNII	3365R6427R Y
CompTox Dashboard (EPA)	DTXSID9044663
InChI InChI=1S/C18H15N3O8S2/c1-10(22)19-14-9-13(30(24,25)26)7-11-8-15(31(27,28)29)17(18(23)16(11)14)21-20-12-5-3-2-4-6-12/h2-9,23H,1H3,(H,19,22)(H,24,25,26)(H,27,28,29)/p-2/b21-20+ Y Key: RSNSKUBBVCGSND-QZQOTICOSA-L Y InChI=1/C18H15N3O8S2/c1-10(22)19-14-9-13(30(24,25)26)7-11-8-15(31(27,28)29)17(18(23)16(11)14)21-20-12-5-3-2-4-6-12/h2-9,23H,1H3,(H,19,22)(H,24,25,26)(H,27,28,29)/p-2/b21-20+ Key: RSNSKUBBVCGSND-OLKPTRFBBB
SMILES CC(=O)Nc2cc(cc3cc(c(/N=N/c1ccccc1)c(O)c23)S([O-])(=O)=O)S([O-])(=O)=O
Properties
Chemical formula	C18H13N3O8S2
Molar mass	463.44 g·mol−1
Solubility in water	18 g/100 mL (20 °C)
Solubility	1 g/ 100 mL glycerol Negligible in ethanol
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

Red 2G is a synthetic red azo dye. It is soluble in water and slightly soluble in glycerol. It usually comes as a disodium salt of 8-acetamido-1-hydroxy-2-phenylazonaphthalene-3,6 disulfonate.