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426818-71-5

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426818-71-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 426818-71-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,2,6,8,1 and 8 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 426818-71:
(8*4)+(7*2)+(6*6)+(5*8)+(4*1)+(3*8)+(2*7)+(1*1)=165
165 % 10 = 5
So 426818-71-5 is a valid CAS Registry Number.

426818-71-5Downstream Products

426818-71-5Relevant articles and documents

Fluoronucleosides, isothiocyanato C-nucleosides, and thioureylene di-C-nucleosides via cyclic sulfates

Fuentes, Jose,Angulo, Manuel,Angeles Pradera

, p. 2577 - 2587 (2007/10/03)

Cyclic sulfates of N- and C-nucleosides (D-ribo and D-erythro configurations, respectively) are used to prepare 3′-fluoro and 3′-azido D-Xylo N-nucleosides and L-threo C-nucleosides. The reduction of the 3′-azido C-nucleosides (furan, imidazoline-2-thione, and pyrrole derivatives) gives 3′-amino C-nucleosides, which, by reaction with thiocarbonyldiimidazole, are transformed into 3′-isothiocyanato C-nucleosides. Reaction of the 3′-amino with the 3′-isothiocyanato C-nucleosides gives thioureylene di-C-nucleosides, a type of nucleotide analogue with a nonionic bridge isosteric of the phosphate group.

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