Cas 371922-20-2,C23H17ClN2O5S

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Check Digit Verification of cas no

The CAS Registry Mumber 371922-20-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,7,1,9,2 and 2 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 371922-20:
(8*3)+(7*7)+(6*1)+(5*9)+(4*2)+(3*2)+(2*2)+(1*0)=142
142 % 10 = 2
So 371922-20-2 is a valid CAS Registry Number.

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371922-20-2Relevant articles and documents

Approach to the library of 3-hydroxy-1,5-dihydro-2H-pyrrol-2-ones through a three-component condensation

Ryabukhin, Sergey V.,Panov, Dmitriy M.,Plaskon, Andrey S.,Grygorenko, Oleksandr O.

, p. 631 - 635 (2013/02/23)

A convenient procedure for the parallel synthesis of 3-hydroxy-1,5-dihydro- 2H-pyrrol-2-ones through a three-component condensation of active methylene compounds, aldehydes, and amines was developed. It was shown that the use of acetic acid as the reactio

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CAS

371922-20-2