1937-37-7 disodium 4-amino-3-[[4'-[(2,4-diaminophenyl)azo][1,1'-biphenyl]-4-yl]azo]-5-hydroxy-6-(phenylazo)naphthalene-2,7-disulphonate disodium 4-amino-3-[[4'-[(2,4-diaminophenyl)azo][1,1'-biphenyl]-4-yl]azo]-5-hydroxy-6-(phenylazo)naphthalene-2,7-disulphonate

Synonyms：C.I. 30235; C.I. Direct Black 38; C.I. Direct Black 38, disodium salt; C.I. Direct Black 38, disodium salt (8CI); Azo black; disodium (3Z)-5-amino-6-[(E)-{4'-[(E)-(2,4-diaminophenyl)diazenyl]biphenyl-4-yl}diazenyl]-4-oxo-3-(phenylhydrazono)-3,4-dihydronaphthalene-2,7-disulfonate; disodium (3E)-5-amino-6-[(E)-{4'-[(E)-(2,4-diaminophenyl)diazenyl]biphenyl-4-yl}diazenyl]-4-oxo-3-(phenylhydrazono)-3,4-dihydronaphthalene-2,7-disulfonate; (3E)-5-amino-6-[(E)-{4'-[(E)-(2,4-diaminophenyl)diazenyl]biphenyl-4-yl}diazenyl]-4-oxo-3-(phenylhydrazono)-3,4-dihydronaphthalene-2,7-disulfonic acid
CAS Number：1937-37-7
EINECS：217-710-3
Molecular Formula：C₃₄H₂₇N₉O₇S₂
Molecular Weight：737.7643
InChI：InChI=1/C34H27N9O7S2/c35-22-10-15-27(26(36)18-22)41-38-24-11-6-19(7-12-24)20-8-13-25(14-9-20)40-42-32-28(51(45,46)47)16-21-17-29(52(48,49)50)33(34(44)30(21)31(32)37)43-39-23-4-2-1-3-5-23/h1-18,39H,35-37H2,(H,45,46,47)(H,48,49,50)/b41-38+,42-40+,43-33-
Molecular Structure：
Density：1.61g/cm³
Refractive index：1.768
Hazard Symbols: T:Toxic;
Risk Codes： R45:;
R63:;
Safety Description： S45:;
S53:;