Melting point :2.85°C
Boiling point :156°C
Density :1.2076
vapor pressure :7.95 at 25 °C (gas saturation method-GC, Kim et al., 1984)
refractive index :nD25 1.4985
Flash point :-18 °C
storage temp. :APPROX 4°C
solubility :Slightly soluble in water, miscible with acetone, with cyclohexane, with ethanol (96 per cent) and with vegetable oils.
form :liquid
color :Light yellow to yellow
Specific Gravity :1.23 (25℃)
biological source :human
Water Solubility :0.0145 g/100 mL
Specific Activity :15-21nmol/min·mg
Henry's Law Constant :(x 10^-9 atm?m³/mol): 4.89 at 25 °C (wetted-wall column, Fendinger and Glotfelty, 1990)
Exposure limits :NIOSH REL: TWA 10 mg/m3, IDLH 250 mg/m3; OSHA PEL: TWA 15 mg/m3; ACGIH TLV: TWA 10 mg/m3.
Stability :Stable. Incompatible with oxidizing agents, metals.
LogP :2.360
CAS DataBase Reference :121-75-5(CAS DataBase Reference)
IARC :2A (Vol. 30, Sup 7, 112) 2017
NIST Chemistry Reference :Malathion(121-75-5)
EPA Substance Registry System :Malathion (121-75-5)

Symbol(GHS):
Signal word:	Warning
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes H302 Harmful if swallowed Acute toxicity,oral Category 4 Warning P264, P270, P301+P312, P330, P501 H317 May cause an allergic skin reaction Sensitisation, Skin Category 1 Warning P261, P272, P280, P302+P352,P333+P313, P321, P363, 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:	P261 Avoid breathing 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+P312 IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell. P302+P352 IF ON SKIN: wash with plenty of soap and water.