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727678-34-4

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727678-34-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 727678-34-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,2,7,6,7 and 8 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 727678-34:
(8*7)+(7*2)+(6*7)+(5*6)+(4*7)+(3*8)+(2*3)+(1*4)=204
204 % 10 = 4
So 727678-34-4 is a valid CAS Registry Number.

727678-34-4Relevant articles and documents

A novel approach to 1,2-dihydro-2-oxo-3-pyridinecarboxylic ester via aromatization induced by deamidation

Yu, Gang,Wang, Shaozhong,Wang, Kai,Hu, Yuefei,Hu, Hongwen

, p. 1021 - 1028 (2007/10/03)

A novel approach was developed for the preparation of 4,6-disubstituted-1, 2-dihydro-2-oxo-3-pyridinecarboxylic ester in moderate to good yields. This route involves a reaction sequence of Michael addition, transformation to ene-lactam, and aromatization, featuring easily available material, variable substituents, and good functional compatibility.

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