Cas 19930-31-5,1-methylvinyl tetraethylphosphorodiamidate

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Check Digit Verification of cas no

The CAS Registry Mumber 19930-31-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,9,9,3 and 0 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 19930-31:
(7*1)+(6*9)+(5*9)+(4*3)+(3*0)+(2*3)+(1*1)=125
125 % 10 = 5
So 19930-31-5 is a valid CAS Registry Number.

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19930-31-5Relevant academic research and scientific papers

Reactions of phosphorodiamidous acid esters with α-halocarbonyl compounds

Sal'keeva,Nurmaganbetova,Kurmanaliev,Gazizov

, p. 1760 - 1763 (2002)

Reactions of ethyl and tert-butyl phosphorodiamidites with chloroacetone, bromoacetone, and α-chloroethyl acetate were studied. The reaction pathway is determined by the structure of the intermediate quasiphosphonium compound responsible for the formation

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