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1574312-57-4

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1574312-57-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1574312-57-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,5,7,4,3,1 and 2 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1574312-57:
(9*1)+(8*5)+(7*7)+(6*4)+(5*3)+(4*1)+(3*2)+(2*5)+(1*7)=164
164 % 10 = 4
So 1574312-57-4 is a valid CAS Registry Number.

1574312-57-4Relevant articles and documents

Preparation of 6-unsubstituted 3,4-dihydropyrimidin-2(1H)-ones and 2-(arylamino)pyrimidines

Terentjeva,Muceniece,Lusis

, p. 1757 - 1769 (2014/05/06)

The Biginelli reaction of methyl propiolate and of methyl 3-diethylaminoacrylate has yielded a novel series of 6-unsubstituted 3,4-dihydropyrimidin-2(1H)-ones. The successie oxidation of the pyrimidine ring, chlorination of the 2-oxo group, and substitution of the chlorine atom by an aromatic amine give previously unknown 2-(arylamino)pyrimidines. 2-Oxo- and 2-(arylamino)pyrimidine-5-carboxylic acids have been obtained.

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