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1346921-53-6

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1346921-53-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1346921-53-6 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,4,6,9,2 and 1 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1346921-53:
(9*1)+(8*3)+(7*4)+(6*6)+(5*9)+(4*2)+(3*1)+(2*5)+(1*3)=166
166 % 10 = 6
So 1346921-53-6 is a valid CAS Registry Number.

1346921-53-6Relevant articles and documents

AN IMPROVED PROCESS FOR THE MANUFACTURE OF LAMIVUDINE

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, (2011/12/02)

The present invention relates to an improved process for the Manufacture of Lamivudine. A process for the preparation of essentially enantiomerically pure (-)-[2R, 5S]-4-amino-1-[2- (hydroxymethyl)-1,3-oxathiolan-5-y1]-2(1H)-pyrimidin-2-one of formula (I), from L-menthyl glyoxylate is described. Also provided is a process for preparation of (+)-1- (2R/S-Cis)-4-amino-1-[(2-hydroxymethyl)-1,3-oxathiolan-5-y1]-2(1H)-pyrimidin-2-one of formula (XII), from L-menthyl glyoxylate.

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