Cas 433253-78-2,C24H20N2O6S

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Check Digit Verification of cas no

The CAS Registry Mumber 433253-78-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,3,3,2,5 and 3 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 433253-78:
(8*4)+(7*3)+(6*3)+(5*2)+(4*5)+(3*3)+(2*7)+(1*8)=132
132 % 10 = 2
So 433253-78-2 is a valid CAS Registry Number.

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433253-78-2Relevant 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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433253-78-2