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1334533-59-3

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1334533-59-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1334533-59-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,3,4,5,3 and 3 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1334533-59:
(9*1)+(8*3)+(7*3)+(6*4)+(5*5)+(4*3)+(3*3)+(2*5)+(1*9)=143
143 % 10 = 3
So 1334533-59-3 is a valid CAS Registry Number.

1334533-59-3Relevant articles and documents

A simple synthesis of 2-deoxy-3-thioinosine and its phosphorothioamidite

Luo, Qianfu,Cheng, Renjun,Wang, Qiu,Bao, Shuming

, p. 106 - 110 (2013/03/13)

5-O-{[Bis(4-methoxyphenyl)(phenyl)methyl])-2-deoxy-3-thioinosine and its S-phosphorothioamidite were prepared in five and six steps, respectively, from commercially available 2-deoxyinosine. The key 3-thio intermediate was synthesized by two sequential configuration inversions: a one-pot oxidation/reduction reaction and an S reaction. This intermediate was readily converted into the target compound with a high yield. Compared with other methods, this synthetic strategy has the advantages of brief reaction steps, a relatively high overall yield, and regioselectivity for the configuration inversions. The products might be useful as intermediates for the preparation of new functionalized nucleosides. Georg Thieme Verlag Stuttgart · New York.

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