Benzoic acid,5-[2-[4'-[2-[4,5-dihydro-3-methyl-5-oxo-1-(4-sulfophenyl)-1H-pyrazol-4-yl]diazenyl]-3,3'-dimethyl[1,1'-biphenyl]-4-yl]diazenyl]-2-hydroxy-,sodium salt (1:2) (6420-03-7)

Identification
Name:	Benzoic acid,5-[2-[4'-[2-[4,5-dihydro-3-methyl-5-oxo-1-(4-sulfophenyl)-1H-pyrazol-4-yl]diazenyl]-3,3'-dimethyl[1,1'-biphenyl]-4-yl]diazenyl]-2-hydroxy-,sodium salt (1:2)
Synonyms:	Benzoicacid,5-[[4'-[[4,5-dihydro-3-methyl-5-oxo-1-(4-sulfophenyl)-1H-pyrazol-4-yl]azo]-3,3'-dimethyl[1,1'-biphenyl]-4-yl]azo]-2-hydroxy-,disodium salt (9CI); C.I. Direct Orange 31, disodium salt (8CI); C.I. 23655;C.I. Direct Orange 31; Diaphtamine Fast Orange PRS; Diazol Brilliant Orange RN;Direct Fast Orange PRN; Direct Orange 31; NSC 326199
CAS:	6420-03-7
EINECS:	229-149-1
Molecular Formula:	C31H26 N6 O7 S . 2 Na
Molecular Weight:	0
InChI:	InChI=1/C31H26N6O7S/c1-17-14-20(4-11-26(17)33-32-22-6-13-28(38)25(16-22)31(40)41)21-5-12-27(18(2)15-21)34-35-29-19(3)36-37(30(29)39)23-7-9-24(10-8-23)45(42,43)44/h4-16,29,33H,1-3H3,(H,40,41)(H,42,43,44)/b32-22-,35-34+
Molecular Structure:
Properties
Density:	1.46g/cm³
Refractive index:	1.703
Safety Data