Cas 1204933-70-9,C16H13NO4

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Check Digit Verification of cas no

The CAS Registry Mumber 1204933-70-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,0,4,9,3 and 3 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1204933-70:
(9*1)+(8*2)+(7*0)+(6*4)+(5*9)+(4*3)+(3*3)+(2*7)+(1*0)=129
129 % 10 = 9
So 1204933-70-9 is a valid CAS Registry Number.

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1204933-70-9Relevant 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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1204933-70-9