product Name：Direct Yellow 4
  • C.I. 24890; C.I. Direct Yellow 4 (VAN); C.I. Direct Yellow 4, disodium salt; C.I. Direct Yellow 4, disodium salt (8CI); disodium 2,2'-(E)-ethene-1,2-diylbis{5-[2-(4-oxocyclohexa-2,5-dien-1-ylidene)hydrazino]benzenesulfonate}; 2,2'-(E)-ethene-1,2-diylbis{5-[2-(4-oxocyclohexa-2,5-dien-1-ylidene)hydrazino]benzenesulfonic acid}; 2,2'-ethene-1,2-diylbis{5-[2-(4-oxocyclohexa-2,5-dien-1-ylidene)hydrazino]benzenesulfonic acid}
  • 3051-11-4
  • 221-267-1
  • C26H20N4O8S2
  • 580.589
  • InChI=1/C26H20N4O8S2/c31-23-11-7-19(8-12-23)27-29-21-5-3-17(25(15-21)39(33,34)35)1-2-18-4-6-22(16-26(18)40(36,37)38)30-28-20-9-13-24(32)14-10-20/h1-16,29-30H,(H,33,34,35)(H,36,37,38)
  • Direct Yellow 4 3051-11-4
  • 1.5g/cm3
  • 1.691