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16269-49-1

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16269-49-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 16269-49-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,6,2,6 and 9 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 16269-49:
(7*1)+(6*6)+(5*2)+(4*6)+(3*9)+(2*4)+(1*9)=121
121 % 10 = 1
So 16269-49-1 is a valid CAS Registry Number.

16269-49-1Relevant academic research and scientific papers

OUVERTURE REGIOSPECIFIQUE D'UN OXIRANE PREPARE A PARTIR DU D-XYLOSE PAR DES CARBANIONS SOUFRES; SYNTHESE DE C-NUCLEOSIDES BRANCHES

Gateau-Olesker, A.,Castellanos, L.,Panne-Jacolot, F.,Cleophax, J.,Gero, S.D.

, p. 1685 - 1690 (2007/10/02)

Two methods using the readily accessible D-xylose have been developed for the synthesis of epoxides 4 and 5.The oxirane 5 was considered as a good intermediate for the preparation of 3'-C-substituted nucleosides.The crucial step for the synthesis of 32 is the regiospecific opening of the epoxide 5 using two carbanions, derived from either dithiane or bis(phenylthio)methane, followed by desulphurisation leading to 17.The exclusive opening of the epoxide in 5 was unequivocally established by (13)C NMR spectroscopy.

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