104-23-4

Name 4'-Aminoazobenzene-4-sulphonic acid
CAS 104-23-4
EINECS(EC#) 203-187-9
Molecular Formula C12H11N3O3S
MDL Number MFCD00035564
Molecular Weight 277.3
MOL File 104-23-4.mol

Chemical Properties

Boiling point  477.42℃[at 101 325 Pa]
density  1.3764 (rough estimate)
vapor pressure  0-0Pa at 25℃
refractive index  1.6630 (estimate)
solubility  345.945mg/L in organic solvents at 20 ℃
pka -1.10±0.50(Predicted)
Water Solubility  513-1320mg/L at 37℃
InChI InChI=1S/C12H11N3O3S/c13-9-1-3-10(4-2-9)14-15-11-5-7-12(8-6-11)19(16,17)18/h1-8H,13H2,(H,16,17,18)
InChIKey PPVRMPPLECDING-UHFFFAOYSA-N
SMILES C1(S(O)(=O)=O)=CC=C(N=NC2=CC=C(N)C=C2)C=C1
LogP -0.352 at 37℃
CAS DataBase Reference 104-23-4(CAS DataBase Reference)
EPA Substance Registry System 104-23-4(EPA Substance)

Safety Data

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H302-H315-H319-H335
Precautionary statements  P233-P260-P261-P264-P270-P271-P280-P301+P312-P302+P352-P304-P304+P340-P305+P351+P338-P312-P321-P330-P332+P313-P337+P313-P340-P362-P403-P403+P233-P405-P501
TSCA  TSCA listed
REACH Registrations Active

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