product Name：disodium 4,4'-[[2,4-dihydroxy-5-(hydroxymethyl)-1,3-phenylene]bis(azo)]bisnaphthalene-1-sulphonate
  • C.I. 20285; C.I. Food Brown 3; C.I. Food Brown 3, disodium salt; Chocolate brown HT; disodium 4-[(2E)-2-{(5Z)-3-(hydroxymethyl)-2,6-dioxo-5-[(4-sulfonatonaphthalen-1-yl)hydrazono]cyclohex-3-en-1-ylidene}hydrazino]naphthalene-1-sulfonate
  • 4553-89-3
  • 224-924-0
  • C27H18N4Na2O9S2
  • 652.5628
  • InChI=1/C27H20N4O9S2.2Na/c32-14-15-13-22(30-28-20-9-11-23(41(35,36)37)18-7-3-1-5-16(18)20)27(34)25(26(15)33)31-29-21-10-12-24(42(38,39)40)19-8-4-2-6-17(19)21;;/h1-13,28-29,32H,14H2,(H,35,36,37)(H,38,39,40);;/q;2*+1/p-2/b30-22-,31-25+;;
  • disodium 4,4'-[[2,4-dihydroxy-5-(hydroxymethyl)-1,3-phenylene]bis(azo)]bisnaphthalene-1-sulphonate 4553-89-3