Melting point :36°C
Boiling point :143°C (1.0 mmHg)
Density :1.36
vapor pressure :4.1×10^-4 Pa (20 °C)
refractive index :nD25 1.5367
Flash point :46.1°C
storage temp. :APPROX 4°C
solubility :Chloroform: Slightly Soluble,Methanol: Slightly Soluble
form :solid
Water Solubility :0.005 g/100 mL
BRN :8905814
Stability :Stable. Flammable.
CAS DataBase Reference :298-00-0(CAS DataBase Reference)
IARC :3 (Vol. 30, Sup 7) 1987
NIST Chemistry Reference :Phosphorothioic acid, o,o-dimethyl-o-p-nitrophenyl ester(298-00-0)
EPA Substance Registry System :Methyl parathion (298-00-0)

Symbol(GHS):
Signal word:	Danger
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes H311 Toxic in contact with skin Acute toxicity,dermal Category 3 Danger P280, P302+P352, P312, P322, P361,P363, P405, P501 H373 May cause damage to organs through prolonged or repeated exposure Specific target organ toxicity, repeated exposure Category 2 Warning P260, P314, 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. P273 Avoid release to the environment. P280 Wear protective gloves/protective clothing/eye protection/face protection. P314 Get medical advice/attention if you feel unwell.