α,α-Dichlor-N-methyl-N-methylsulfonyl-acetanilid, also known as dichlorvos, is an organophosphate compound with the chemical formula C4H6Cl2O4S. It is a synthetic pesticide primarily used as an insecticide and acaricide, targeting a wide range of pests, including insects and mites. Dichlorvos is known for its rapid action and quick degradation in the environment, which reduces the risk of persistence. However, due to its high toxicity to humans and potential health risks, its use has been restricted or banned in many countries. It works by inhibiting the enzyme acetylcholinesterase in the nervous system of insects, leading to their paralysis and death. Despite its effectiveness, concerns over its safety have led to a decrease in its application, with a focus on finding safer alternatives for pest control.
The CAS Registry Mumber 90919-97-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,0,9,1 and 9 respectively; the second part has 2 digits, 9 and 7 respectively. Calculate Digit Verification of CAS Registry Number 90919-97: (7*9)+(6*0)+(5*9)+(4*1)+(3*9)+(2*9)+(1*7)=164 164 % 10 = 4 So 90919-97-4 is a valid CAS Registry Number.