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431876-74-3

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431876-74-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 431876-74-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,3,1,8,7 and 6 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 431876-74:
(8*4)+(7*3)+(6*1)+(5*8)+(4*7)+(3*6)+(2*7)+(1*4)=163
163 % 10 = 3
So 431876-74-3 is a valid CAS Registry Number.

431876-74-3Relevant articles and documents

Diastereofacial Solid Phase Synthesis and Self-Promoted Cleavage of a [2.2.1] Bicyclic Diversity Scaffold

Savinov, Sergey N.,Austin, David J.

, p. 1419 - 1422 (2007/10/03)

(matrix presented) We have previously described a diastereofacially selective 1,3-dipolar cycloaddition reaction of isomuenchnones with vinyl ethers. While adapting this methodology for solid phase synthesis, we discovered a chemoselective and self-promoted linker aminolysis that provides liberated product in high purity, at a significantly enhanced rate. Herein we described the implementation of a chiral auxiliary as a solid-phase linker, the detailed investigation of its unique aminolysis, and the utility of this cleavage within a chemical diversity format.

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