Melting point :140-143 °C (lit.)
Boiling point :322.46°C (rough estimate)
Density :1.3617 (estimate)
vapor pressure :0.005Pa at 25℃
refractive index :1.6890 (rough estimate)
Flash point :100 °C
storage temp. :Refrigerator, Under Inert Atmosphere
solubility :DMSO (Slightly), Methanol (Slightly)
pka :6.82±0.22(Predicted)
form :Solid
color :Dark Yellow to Brown
Water Solubility :slightly soluble
BRN :776533
LogP :1.26
CAS DataBase Reference :99-57-0(CAS DataBase Reference)
IARC :3 (Vol. 57) 1993
EPA Substance Registry System :2-Amino-4-nitrophenol (99-57-0)

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:	P261 Avoid breathing dust/fume/gas/mist/vapours/spray. P264 Wash hands thoroughly after handling. P264 Wash skin thouroughly after handling. P271 Use only outdoors or in a well-ventilated area. 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.