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467421-27-8

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467421-27-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 467421-27-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,6,7,4,2 and 1 respectively; the second part has 2 digits, 2 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 467421-27:
(8*4)+(7*6)+(6*7)+(5*4)+(4*2)+(3*1)+(2*2)+(1*7)=158
158 % 10 = 8
So 467421-27-8 is a valid CAS Registry Number.

467421-27-8Downstream Products

467421-27-8Relevant articles and documents

A facile synthesis of pyrrolo-[3,2-d]pyrimidines from 6-azidouracils and ylide phosphoranes

Abdou, Wafaa M.,Fahmy, Amin F. M.,Kamel, Azza A.

, p. 357 - 365 (2007/10/03)

A series of the title compounds, 9-deazaxanthines, was regioselectively prepared in reasonable yields as major products from the reactions of 6-azidouracils 1a,b with stabilized ester-2a,b or keto-2c ylide phosphoranes and a moderated phosphorus ylide 3, instead of the expected triazoles. Side products were also observed wherein pyrimido[5,4-g]pteridine-2,4,5,7-tetrone (15) and other fused ring systems or acyclic-substituted uracil derivatives were isolated. A comparative study on the reactivity of 1a in analogy to 1b toward phosphoranes is also described.

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