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2-HYDROXY-4-OXO-N-(2-PYRIDINYL)-4H-PYRIDO[1,2-A]PYRIMIDINE-3-CARBOXAMIDE is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

224313-75-1

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224313-75-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 224313-75-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,4,3,1 and 3 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 224313-75:
(8*2)+(7*2)+(6*4)+(5*3)+(4*1)+(3*3)+(2*7)+(1*5)=101
101 % 10 = 1
So 224313-75-1 is a valid CAS Registry Number.

224313-75-1Downstream Products

224313-75-1Relevant academic research and scientific papers

4-Hydroxy-2-quinolones 120. Synthesis and structure of ethyl 2-hydroxy-4-oxo-4H-pyrido-[1,2-a]pyrimidine-3-carboxylate

Ukrainets,Bereznyakova,Petyunin,Tugaibei,Rybakov,Chernyshev,Turov

, p. 729 - 739 (2007)

An improved method for the preparation and purification of ethyl 2-hydroxy-4-oxo-4H-pyrido[1,2-a]-pyrimidine-3-carboxylates is proposed. According to 1H and 13C NMR spectroscopic data the synthesized compounds exist in DMSO solution in the 2-hydroxy-4-oxo form while in the crystal (at least for the case of the unsubstituted derivative) X-ray analysis shows that it occurs in the bipolar 2,4-dioxo form.

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