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188559-09-3

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188559-09-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 188559-09-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,8,5,5 and 9 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 188559-09:
(8*1)+(7*8)+(6*8)+(5*5)+(4*5)+(3*9)+(2*0)+(1*9)=193
193 % 10 = 3
So 188559-09-3 is a valid CAS Registry Number.

188559-09-3Relevant articles and documents

Stereocontrolled synthesis of β-2'-deoxypyrimidine nucleosides via intramolecular glycosylations

Xia, Xiaoyang,Wang, Jianying,Hager, Michael W.,Sisti, Nicholas,Liotta, Dennis C.

, p. 1111 - 1114 (2007/10/03)

A pyrimidine moiety was tethered at the 3'-β-position of D-threo-furanosides. By carefully controlling the reaction conditions, pyrimidine bases can be delivered to the anomeric center to give of β-pyrimidine nucleosides in good yield and with complete stereocontrol.

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