Melting point :69 °C
Boiling point :354 °C
Density :1.09
vapor pressure :1 hPa
refractive index :1.6266 (estimate)
Flash point :193°C
storage temp. :Store below +30°C.
solubility :ethanol: soluble10mg/mL, clear, very dark red (Violet to brown to black solution)
Colour Index :37240
pka :5.20±0.10(Predicted)
form :Liquid
color :Clear
PH :8.9 (0.5g/l, H2O, 20℃)
Water Solubility :Soluble in water at 20°C 0.6g/L. Soluble in (10 mg/mL) ethanol.
BRN :908935
Stability :Stable. Combustible. Incompatible with strong oxidizing agents, strong acids, plastics.
LogP :1.82 at 20℃ and pH7
Dissociation constant :5.45-5.47 at 20℃
CAS DataBase Reference :101-54-2(CAS DataBase Reference)
NIST Chemistry Reference :1,4-Benzenediamine, N-phenyl-(101-54-2)
EPA Substance Registry System :p-Aminodiphenylamine (101-54-2)

Symbol(GHS):
Signal word:	Warning
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 H317 May cause an allergic skin reaction Sensitisation, Skin Category 1 Warning P261, P272, P280, P302+P352,P333+P313, P321, P363, P501 H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning P264, P280, P305+P351+P338,P337+P313P H411 Toxic to aquatic life with long lasting effects Hazardous to the aquatic environment, long-term hazard Category 2
Precautionary statements:	P261 Avoid breathing dust/fume/gas/mist/vapours/spray. P273 Avoid release to the environment. P280 Wear protective gloves/protective clothing/eye protection/face protection. 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.