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21943-24-8

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21943-24-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 21943-24-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,9,4 and 3 respectively; the second part has 2 digits, 2 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 21943-24:
(7*2)+(6*1)+(5*9)+(4*4)+(3*3)+(2*2)+(1*4)=98
98 % 10 = 8
So 21943-24-8 is a valid CAS Registry Number.

21943-24-8Downstream Products

21943-24-8Relevant articles and documents

Diastereoselective synthesis of diketopiperazine bis-α,β- epoxides

Ando, Shin,Grote, Amy L.,Koide, Kazunori

supporting information; experimental part, p. 1155 - 1158 (2011/04/24)

Functionalized diketopiperazines (dioxopiperazines) are an important class of molecules in medicinal chemistry and material science. Herein we report a diastereoselective synthesis of diketopiperazine bis-α,β-epoxides via the oxidation of exocyclic olefin

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