Melting point :71-73 °C
Boiling point :444.4±55.0 °C(Predicted)
Density :1.53 g/cm³ (25 ºC)
Flash point :>100 °C
storage temp. :0-6°C
solubility :DMSO (Slightly), Methanol (Slightly)
form :solid
color :White to Pale Yellow
Water Solubility :2.4mg/L(25 ºC)
BRN :2152663
Stability :Hygroscopic, Moisture Sensitive
CAS DataBase Reference :21609-90-5(CAS DataBase Reference)
EPA Substance Registry System :Leptophos (21609-90-5)

Symbol(GHS):
Signal word:	Danger
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes H300 Fatal if swallowed Acute toxicity,oral Category 1, 2 Danger P264, P270, P301+P310, P321, P330,P405, P501 H311 Toxic in contact with skin Acute toxicity,dermal Category 3 Danger P280, P302+P352, P312, P322, P361,P363, P405, P501 H370 Causes damage to organs Specific target organ toxicity, single exposure Category 1 Danger P260, P264, P270, P307+P311, P321,P405, P501 H410 Very toxic to aquatic life with long lasting effects Hazardous to the aquatic environment, long-term hazard Category 1 Warning P273, P391, P501
Precautionary statements:	P260 Do not breathe dust/fume/gas/mist/vapours/spray. P264 Wash hands thoroughly after handling. P264 Wash skin thouroughly after handling. P273 Avoid release to the environment. P280 Wear protective gloves/protective clothing/eye protection/face protection. P301+P310 IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician.