CAS NO:2870-32-8

EC NO:220-698-2

Molecular Formula:C₃₀H₂₆N₄Na₂O₈S₂

Molecular Weight:680.659

Synonyms:;C.I. 24895;C.I. Direct Yellow 12;CI 24895;Direct Yellow 12;chrysophenine (C.I. 24895);Chrysophenine G;disodium 2,2'-(E)-ethene-1,2-diylbis{5-[(E)-(4-ethoxyphenyl)diazenyl]benzenesulfonate};disodium 2,2'-(Z)-ethene-1,2-diylbis{5-[(E)-(4-ethoxyphenyl)diazenyl]benzenesulfonate};Direct Yellow 12;Direct yellow-12;DY12 dye;

Molecular Structure:

CAS NO:3441-14-3

EC NO:222-348-4

Molecular Formula:C₃₅H₂₇N₇O₁₀S₂

Molecular Weight:769.7598

Synonyms:;C.I. 29160;C.I. Direct Red 23 (VAN);C.I. Direct Red 23, disodium salt;C.I. Direct Red 23;C.I. Direct Red 23, disodium salt;Direct Red 23;Scarlet 4BS;disodium 4-oxo-3-(2-{4-[(2-oxoethyl)amino]phenyl}hydrazinylidene)-6-({[(6E)-5-oxo-6-(2-phenylhydrazinylidene)-7-sulfonato-5,6-dihydronaphthalen-2-yl]carbamoyl}amino)-3,4-dihydronaphthalene-2-sulfonate;(3E)-3-{2-[4-(acetylamino)phenyl]hydrazinylidene}-4-oxo-7-({[(6E)-5-oxo-6-(2-phenylhydrazinylidene)-7-sulfo-5,6-dihydronaphthalen-2-yl]carbamoyl}amino)-3,4-dihydronaphthalene-2-sulfonic acid;Direct Scarlet 4BS;

Molecular Structure: