Parathion-methyl

Synonym(s):O,O-Dimethyl O-(4-nitrophenyl) phosphorothioate;Methyl parathion

CAS NO.：298-00-0
Empirical Formula: C8H10NO5PS
Molecular Weight: 263.21
MDL number: MFCD00041813
EINECS: 206-050-1
SAFETY DATA SHEET (SDS)
Update Date: 2024-03-14 15:18:26

What is Parathion-methyl?

Description

Methyl parathion is an organophosphate insecticide. It is converted into an oxon-containing metabolite in vivo, similar to other organophosphate pesticides, that inhibits acetylcholinesterase. Methyl parathion is lethal to lab strains and field isolates of tobacco budworm larvae (LD₅₀s = 7 and 81.8-128.3 μg/g, respectively). It reduces the number of stink bugs (C. sayi) caught per 100 net sweeps when applied to alfalfa fields at a concentration of 0.4 pounds per acre. Methyl parathion increases sister chromatid exchange (SCE) in a concentration-dependent manner and induces cell cycle arrest at the M₁ phase in V79 cells at a concentration of 40 μg/ml. It is toxic to rats (LD₅₀ = 14 mg/kg).

The Uses of Parathion-methyl

Parathion-methyl is an derivative of Parathion (P192220), an organophosphate insecticide used on cotton, rice and fruit trees.

What are the applications of Application

Methyl parathion solution is a pesticide for proteomics research

Properties of Parathion-methyl

Melting point:	36°C
Boiling point:	143°C (1.0 mmHg)
Density	1.36
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

Safety information for Parathion-methyl

Signal word	Danger
Pictogram(s)	Skull and Crossbones Acute Toxicity GHS06 Health Hazard GHS08 Environment GHS09
GHS Hazard Statements	H311:Acute toxicity,dermal H373:Specific target organ toxicity, repeated exposure H410:Hazardous to the aquatic environment, long-term hazard
Precautionary Statement Codes	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.