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147992-90-3

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147992-90-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 147992-90-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,7,9,9 and 2 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 147992-90:
(8*1)+(7*4)+(6*7)+(5*9)+(4*9)+(3*2)+(2*9)+(1*0)=183
183 % 10 = 3
So 147992-90-3 is a valid CAS Registry Number.

147992-90-3Relevant articles and documents

Synthesis and hydrolytic cleavage of 1-aryl-5-cyano-6-(2- dimethylaminovinyl)-4-oxo(thioxo)-1,4-dihydropyrimidines

Ivanov,Tugusheva,Alekseeva,Granik

, p. 873 - 881 (2007/10/03)

1-Aryl-5-cyano-6-(2-dimethylaminovinyl)-4-oxo-1,4-dihydropyrimidines and their 4-thioxo analogs, which were prepared in three steps from cyanoacetamide and cyanothioacetamide, respectively, were subjected to hydrolysis. In aqueous AcOH, hydrolysis of N-(dimethylaminomethylene)-2-cyano-5-dimethylamino-2,4- pentadieneamide derivatives containing amino groups at position 3 afforded formylpyridones. The reaction of 2-cyano-3-dimethylaminothiocrotonamide with DMF dimethyl acetal gave rise to 3-cyano-4-dimethylamino-2-methylthiopyridine.

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