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Urea, N-(5-chloro-2-methylphenyl)-N'-cyclopropyl-, also known as Chlorpyrifos, is a widely used organophosphate insecticide. It is a white crystalline solid with the chemical formula C9H11Cl3NO3PS. Chlorpyrifos is effective against a broad spectrum of pests, including insects, mites, and nematodes, and is commonly used in agriculture, forestry, and public health applications. The compound works by inhibiting the enzyme acetylcholinesterase, which disrupts the nervous system of the target pests, leading to their paralysis and eventual death. Due to its potential health and environmental risks, the use of Chlorpyrifos has been restricted or banned in several countries.

64393-35-7

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64393-35-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 64393-35-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,4,3,9 and 3 respectively; the second part has 2 digits, 3 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 64393-35:
(7*6)+(6*4)+(5*3)+(4*9)+(3*3)+(2*3)+(1*5)=137
137 % 10 = 7
So 64393-35-7 is a valid CAS Registry Number.

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