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216481-88-8

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216481-88-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 216481-88-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,6,4,8 and 1 respectively; the second part has 2 digits, 8 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 216481-88:
(8*2)+(7*1)+(6*6)+(5*4)+(4*8)+(3*1)+(2*8)+(1*8)=138
138 % 10 = 8
So 216481-88-8 is a valid CAS Registry Number.

216481-88-8Relevant articles and documents

Practical enantiodivergent syntheses of both enantiomers of carbovir, 1592U89 and six-membered ring analogues

Olivo, Horacio F.,Yu, Jiaxin

, p. 391 - 392 (1998)

The hydroxylactones 4a-b (both available in optically pure form from biocatalytic processes) have been used in the preparation of carbovir, 1592U89, and their six-membered ring analogues.

[2+3]-cycloadditions of enantiomerically pure oxazoline-N-oxides1 : A short stereoselective synthesis of (+)-carbovir

Berranger, Thierry,Langlois, Yves

, p. 5523 - 5526 (2007/10/02)

A short stereo selective synthesis of the potent antiviral agent carbovir 1 has been achieved by using a new [2+3] asymmetric cycloaddition between oxazoline-N-oxide 3 and cyclopentadiene.

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