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4H-Pyrido[1,2-a]pyrimidin-4-one, 6-methyl-2,3-diphenyl- is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

91538-33-9

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91538-33-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 91538-33-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,5,3 and 8 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 91538-33:
(7*9)+(6*1)+(5*5)+(4*3)+(3*8)+(2*3)+(1*3)=139
139 % 10 = 9
So 91538-33-9 is a valid CAS Registry Number.

91538-33-9Relevant academic research and scientific papers

Studies on Ketene and Its Derivatives. Part 119. . Reactions of Haloketenes with 2-Arylideneaminopyridines

Katagiri, Nobuya,Kato, Tetsuzo,Niwa, Ryuji

, p. 407 - 412 (2007/10/02)

Reactions of haloketenes with 2-arylideneaminopyridines were examined.Reaction of dichloroketene with 2-benzylideneaminopyridines gave 2,2-dichloro-3-phenyl-3-(2-pyridylamino)propanoic acids and 3-chloro-2-phenylpyridopyrimidin-4(4H)-ones.Similar r

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