4-[(2,4-Dihydroxyphenyl)azo]benzenesulfonic acid
IUPAC 名称
4-[2-(2,4-dihydroxyphenyl)diazen-1-yl]benzene-1-sulfonic acid
描述
Food dye; no longer permitted in the EU
异构
OC1=CC(O)=C(C=C1)N=NC1=CC=C(C=C1)S(O)(=O)=O
InChI标识符
InChI=1S/C12H10N2O5S/c15-9-3-6-11(12(16)7-9)14-13-8-1-4-10(5-2-8)20(17,18)19/h1-7,15-16H,(H,17,18,19)
键
MHKGJUOEEHNBLE-UHFFFAOYSA-N