Melting point :197-203 °C
Boiling point :273.29°C (rough estimate)
Density :1.0968
refractive index :1.6392 (estimate)
storage temp. :Keep in dark place,Inert atmosphere,2-8°C
solubility :pyridine: soluble50mg/mL
form :Crystalline Powder
pka :5.36±0.10(Predicted)
color :Green-brown to brown
Water Solubility :Slightly soluble in water. Soluble in pyridine, dimethylsulfoxide, dimethyformamide, dil.hydrochloric acid, ethanol, ether and hot methanol.
BRN :2206394
Stability :Stable. Combustible. Incompatible with strong oxidizing agents.
CAS DataBase Reference :771-97-1(CAS DataBase Reference)
EPA Substance Registry System :2,3-Naphthalenediamine (771-97-1)

Symbol(GHS):
Signal word:	Danger
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes H302 Harmful if swallowed Acute toxicity,oral Category 4 Warning P264, P270, P301+P312, P330, P501 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 H350 May cause cancer Carcinogenicity Category 1A, 1B Danger
Precautionary statements:	P201 Obtain special instructions before use. P202 Do not handle until all safety precautions have been read and understood. P301+P312 IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell. 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. P308+P313 IF exposed or concerned: Get medical advice/attention.