Heterophos, with the chemical name O-ethyl O-phenyl S-propyl phosphorothioate and CAS number 40626-35-5, is an organophosphorus pesticide used as both an insecticide and nematicide. It is commonly applied in agricultural settings to control a variety of pests, including insects and nematodes, that affect crops such as rice and vegetables. The mechanism of action of Heterophos involves the inhibition of acetylcholinesterase (AChE), an enzyme critical for the proper functioning of the nervous system in insects and nematodes. By binding to AChE, Heterophos prevents the breakdown of acetylcholine, leading to the accumulation of this neurotransmitter at synaptic junctions. This accumulation results in continuous nerve stimulation, paralysis, and ultimately the death of the target pests.
MedKoo Cat#: 146264
Name: Heterophos
CAS#: 40626-35-5
Chemical Formula: C11H17O3PS
Exact Mass: 260.0636
Molecular Weight: 260.29
Elemental Analysis: C, 50.76; H, 6.58; O, 18.44; P, 11.90; S, 12.32
The following data is based on the product molecular weight 260.29 Batch specific molecular weights may vary from batch to batch due to the degree of hydration, which will affect the solvent volumes required to prepare stock solutions.
| Concentration / Solvent Volume / Mass | 1 mg | 5 mg | 10 mg |
|---|---|---|---|
| 1 mM | 1.15 mL | 5.76 mL | 11.51 mL |
| 5 mM | 0.23 mL | 1.15 mL | 2.3 mL |
| 10 mM | 0.12 mL | 0.58 mL | 1.15 mL |
| 50 mM | 0.02 mL | 0.12 mL | 0.23 mL |
