Ethyl-phenyl-phosphinodithioic acid isobutyl ester, also known as EPN or O-ethyl O-phenyl S-isobutyl phosphorodithioate, is an organophosphorus compound widely used as an insecticide and acaricide. It is a colorless to pale yellow liquid with a distinctive odor and is highly soluble in organic solvents. This chemical acts as a potent inhibitor of acetylcholinesterase, an enzyme responsible for breaking down the neurotransmitter acetylcholine in the nervous system of insects. By inhibiting this enzyme, it disrupts the nervous system of pests, leading to paralysis and death. EPN is particularly effective against a variety of pests, including aphids, mites, and whiteflies, and is used in agriculture to protect crops from damage. However, due to its toxicity and potential environmental impact, its use is regulated in many countries, and alternative, less harmful pesticides are often preferred.
The CAS Registry Mumber 6588-32-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,5,8 and 8 respectively; the second part has 2 digits, 3 and 2 respectively. Calculate Digit Verification of CAS Registry Number 6588-32: (6*6)+(5*5)+(4*8)+(3*8)+(2*3)+(1*2)=125 125 % 10 = 5 So 6588-32-5 is a valid CAS Registry Number.