Melting point :160-161 °C (dec.)(lit.)
Boiling point :590.0±60.0 °C(Predicted)
Density :1.4940 (rough estimate)
vapor pressure :0.001Pa at 80℃
refractive index :1.6000 (estimate)
storage temp. :-20°C Freezer, Under inert atmosphere
solubility :DMSO (Slightly, Sonicated), Methanol (Slightly, Heated, Sonicated)
form :Solid
pka :8.76±0.10(Predicted)
color :White
Water Solubility :Insoluble in water.
Exposure limits :ACGIH: TWA 0.1 mg/m3
LogP :0.08
CAS DataBase Reference :80-51-3(CAS DataBase Reference)
NIST Chemistry Reference :4,4'-Oxydibenzenesulfonyl hydrazide(80-51-3)
EPA Substance Registry System :Benzenesulfonic acid, 4,4'-oxybis-, 1,1'-dihydrazide (80-51-3)

Symbol(GHS):
Signal word:
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes H228 Flammable solid Flammable solids Category 1 Category 2 Danger Warning P210, P240,P241, P280, P370+P378 H242 Heating may cause a fire Self-reactive substances and mixtures; and Organic peroxides Type C, D,Type E, F Type G Danger Warning P210, P220, P234, P280, P370+P378,P403+P235, P411, P420, P501 H303 May be harmfulif swallowed Acute toxicity,oral Category 5 P312
Precautionary statements:	P210 Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P220 Keep/Store away from clothing/…/combustible materials. P280 Wear protective gloves/protective clothing/eye protection/face protection. P420 Store away from other materials.