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256343-21-2

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256343-21-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 256343-21-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,6,3,4 and 3 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 256343-21:
(8*2)+(7*5)+(6*6)+(5*3)+(4*4)+(3*3)+(2*2)+(1*1)=132
132 % 10 = 2
So 256343-21-2 is a valid CAS Registry Number.

256343-21-2Downstream Products

256343-21-2Relevant articles and documents

Template-directed intramolecular C-glycosidation. Formation of tetrahydrofurans and application to the synthesis of a higher-order sugar

Craig, Donald,Pennington, Mark W.,Warner, Peter

, p. 13495 - 13512 (2007/10/03)

Cation-mediated cyclisation reactions of silyl enol ether-containing thioglycosides give bicyclic ketotetrahydrofurans. Cyclisation of an analogous 3-phenyl-2-propenyl ether-containing substrate gives an intermediate in the total synthesis of the higher-order sugar 2,3-dideoxy-D- manno-2-octulopyranosonic acid.

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