2,5-Diaminobenzenesulfonic acid

Melting point :298-300 °C (dec.) (lit.)
Boiling point :500°C
Density :1.366 (estimate)
vapor pressure :0Pa at 25℃
refractive index :1.6490 (estimate)
storage temp. :Keep in dark place,Inert atmosphere,Room temperature
solubility :2.308g/L in organic solvents at 20 ℃
pka :5.17±0.10(Predicted)
form :solid
color :White to Light gray to Light orange
Water Solubility :4g/L at 26℃
BRN :2970398
InChI :1S/C6H8N2O3S/c7-4-1-2-5(8)6(3-4)12(9,10)11/h1-3H,7-8H2,(H,9,10,11)
InChIKey :HEAHMJLHQCESBZ-UHFFFAOYSA-N
SMILES :Nc1ccc(N)c(c1)S(O)(=O)=O
LogP :0.146 at 26℃
CAS DataBase Reference :88-45-9(CAS DataBase Reference)
EPA Substance Registry System :Benzenesulfonic acid, 2,5-diamino- (88-45-9)

Symbol(GHS):
Signal word:	Danger
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes H314 Causes severe skin burns and eye damage Skin corrosion/irritation Category 1A, B, C Danger P260,P264, P280, P301+P330+ P331,P303+P361+P353, P363, P304+P340,P310, P321, P305+ P351+P338, P405,P501
Precautionary statements:	P260 Do not breathe dust/fume/gas/mist/vapours/spray. P280 Wear protective gloves/protective clothing/eye protection/face protection. P303+P361+P353 IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. P363 Wash contaminated clothing before reuse.