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O-phenyldimethylphosphinothioate, also known as demeton-S-methyl or O,O-dimethyl-S-phenyl phosphorothioate, is an organophosphorus compound primarily used as an insecticide and acaricide. It is a colorless to pale yellow liquid with a slight odor and is soluble in most organic solvents. This chemical acts by inhibiting the enzyme acetylcholinesterase, which disrupts the nervous system of target pests, leading to paralysis and death. Due to its high toxicity and potential health risks, its use has been restricted or banned in many countries. It is important to handle this chemical with extreme caution and follow proper safety measures to minimize exposure and environmental contamination.

5553-01-5

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5553-01-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 5553-01-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,5,5 and 3 respectively; the second part has 2 digits, 0 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 5553-01:
(6*5)+(5*5)+(4*5)+(3*3)+(2*0)+(1*1)=85
85 % 10 = 5
So 5553-01-5 is a valid CAS Registry Number.

5553-01-5Downstream Products

5553-01-5Relevant academic research and scientific papers

A concerted mechanism for the transfer of the thiophosphinoyl group from aryl dimethylphosphinothioate esters to oxyanionic nucleophiles in aqueous solution

Onyido, Ikenna,Swierczek, Krzysztof,Purcell, Jamie,Hengge, Alvan C.

, p. 7703 - 7711 (2007/10/03)

Earlier work on the hydrolysis of aryl phosphinothioate esters has led to contradictory mechanistic conclusions. To resolve this mechanistic ambiguity, we have measured linear free energy relationships (βnuc and βIg) and kinetic isot

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