Melting point :>300 °C(lit.)
Density :1.751 at 20℃
vapor pressure :15Pa at 20-50℃
storage temp. :-20°C
solubility :H₂O: 1 tablet/3 mL 25 mM, clear, light yellow
form :tablets
color :white to pale yellow
Water Solubility :Miscible with water. Immiscible with ethanol and acetone.
BRN :5324661
Stability :Stable, but may be light sensitive. Incompatible with strong acids, strong bases, strong oxidizing agents.
InChIKey :KAKKHKRHCKCAGH-UHFFFAOYSA-L
LogP :-2.16 at 22℃ and pH6.7
Surface tension :69.34mN/m at 1.051g/L and 20℃
CAS DataBase Reference :4264-83-9(CAS DataBase Reference)
EPA Substance Registry System :Phosphoric acid, mono(4-nitrophenyl) ester, disodium salt (4264-83-9)

Symbol(GHS):
Signal word:	Danger
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes H290 May be corrosive to metals Corrosive to Metals Category 1 Warning P234, P390, P404 H315 Causes skin irritation Skin corrosion/irritation Category 2 Warning P264, P280, P302+P352, P321,P332+P313, P362 H318 Causes serious eye damage Serious eye damage/eye irritation Category 1 Danger P280, P305+P351+P338, P310 H373 May cause damage to organs through prolonged or repeated exposure Specific target organ toxicity, repeated exposure Category 2 Warning P260, P314, P501
Precautionary statements:	P202 Do not handle until all safety precautions have been read and understood. P234 Keep only in original container. 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. P308+P313 IF exposed or concerned: Get medical advice/attention.