Melting point :44.5°C
Boiling point :208.7±23.0 °C(Predicted)
Density :d44.5 1.31
vapor pressure :2.3×10^-3Pa (25°C)
refractive index :nD40 1.5092
Flash point :212 °C
storage temp. :0-6°C
solubility :Chloroform (Slightly), Methanol (Slightly)
Water Solubility :>200 g l^-1 (20°C)
pka :-0.58±0.70(Predicted)
form :solid
Stability :Stable. Incompatible with strong oxidizing agents, copper, copper alloys.
CAS DataBase Reference :10265-92-6(CAS DataBase Reference)
NIST Chemistry Reference :Phosphoramidothioic acid, o,s-dimethyl ester(10265-92-6)
EPA Substance Registry System :Methamidophos (10265-92-6)

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 H330 Fatal if inhaled Acute toxicity,inhalation Category 1, 2 Danger P260, P271, P284, P304+P340, P310,P320, P403+P233, P405, P501 H400 Very toxic to aquatic life Hazardous to the aquatic environment, acute 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. P270 Do not eat, drink or smoke when using this product. P271 Use only outdoors or in a well-ventilated area. P273 Avoid release to the environment. P280 Wear protective gloves/protective clothing/eye protection/face protection. P284 Wear respiratory protection. P301+P310 IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician. P302+P352 IF ON SKIN: wash with plenty of soap and water. P304+P340 IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing. P310 Immediately call a POISON CENTER or doctor/physician. P312 Call a POISON CENTER or doctor/physician if you feel unwell. P320 Specific treatment is urgent (see … on this label). P321 Specific treatment (see … on this label). P322 Specific measures (see …on this label). P330 Rinse mouth. P361 Remove/Take off immediately all contaminated clothing. P363 Wash contaminated clothing before reuse. P391 Collect spillage. Hazardous to the aquatic environment P403+P233 Store in a well-ventilated place. Keep container tightly closed. P405 Store locked up. P501 Dispose of contents/container to..…