Melting point :244 °C(lit.)
Density :1.527±0.06 g/cm3(Predicted)
vapor pressure :0Pa at 25℃
storage temp. :2-8°C(protect from light)
form :Solid
pka :-1.24±0.50(Predicted)
InChIKey :VKURVCNKVWKGLX-UHFFFAOYSA-N
Dissociation constant :0 at 33℃
CAS DataBase Reference :119-70-0(CAS DataBase Reference)
EPA Substance Registry System :Benzenesulfonic acid, 5-amino-2-[(4-aminophenyl)amino]- (119-70-0)

Symbol(GHS):
Signal word:	Warning
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes H315 Causes skin irritation Skin corrosion/irritation Category 2 Warning P264, P280, P302+P352, P321,P332+P313, P362 H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning P264, P280, P305+P351+P338,P337+P313P H335 May cause respiratory irritation Specific target organ toxicity, single exposure;Respiratory tract irritation Category 3 Warning
Precautionary statements:	P264 Wash hands thoroughly after handling. P264 Wash skin thouroughly after handling. P280 Wear protective gloves/protective clothing/eye protection/face protection. P302+P352 IF ON SKIN: wash with plenty of soap and water. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. P321 Specific treatment (see … on this label). P332+P313 IF SKIN irritation occurs: Get medical advice/attention. P362 Take off contaminated clothing and wash before reuse.