Ethyl-<4-nitro-phenyl>-α-methyl-β-phenethylphosphonat, also known as EPN, is an organophosphorus compound that serves as an insecticide and acaricide. It is a colorless, oily liquid with a molecular formula of C14H16NO4P and a molecular weight of 293.25 g/mol. EPN is characterized by its ability to inhibit acetylcholinesterase, an enzyme responsible for breaking down the neurotransmitter acetylcholine in the nervous system of insects. This inhibition leads to the accumulation of acetylcholine, causing overstimulation and ultimately paralysis and death of the target pests. The chemical is effective against a wide range of insects, including aphids, mites, and various larvae, and is used in agriculture and horticulture to protect crops from damage. However, due to its toxicity and potential environmental impact, its use is regulated in many countries.
The CAS Registry Mumber 1099-60-1 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,0,9 and 9 respectively; the second part has 2 digits, 6 and 0 respectively. Calculate Digit Verification of CAS Registry Number 1099-60: (6*1)+(5*0)+(4*9)+(3*9)+(2*6)+(1*0)=81 81 % 10 = 1 So 1099-60-1 is a valid CAS Registry Number.