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162853-45-4

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162853-45-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 162853-45-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,2,8,5 and 3 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 162853-45:
(8*1)+(7*6)+(6*2)+(5*8)+(4*5)+(3*3)+(2*4)+(1*5)=144
144 % 10 = 4
So 162853-45-4 is a valid CAS Registry Number.

162853-45-4Relevant academic research and scientific papers

Synthesis of nucleoside 5'-deoxy-5'-difluoromethylphosphonates

Matulic-Adamic,Usman

, p. 3227 - 3230 (1994)

1-O-acetyl-2,3-di-O-benzoyl-D-ribofuranose 5-deoxy-5-difluoromethylphosphonate was synthesized in three steps from 1-O-methyl-2,3-O-isopropylidene-β-D-ribofuranose 5-deoxy-5-difluoromethylphosphonate. Condensation of this suitably derivatized sugar with silylated pyrimidines and purines afforded novel nucleoside 5'-deoxy-5'-difluoromethylphosphonates.

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