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174955-57-8

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174955-57-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 174955-57-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,4,9,5 and 5 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 174955-57:
(8*1)+(7*7)+(6*4)+(5*9)+(4*5)+(3*5)+(2*5)+(1*7)=178
178 % 10 = 8
So 174955-57-8 is a valid CAS Registry Number.

174955-57-8Relevant articles and documents

Studies on the Synthesis and Biological Activities of 4'-(R)-Hydroxy-5'-(S)-hydroxymethyl-tetrahydrofuranyl Purines and Pyrimidines

Yu, Hong-Wu,Zhang, Liang-Ren,Zhou, Ji-Chang,Ma, Ling-Tai,Zhang, Li-He

, p. 609 - 614 (1996)

A series of 4'-(R)-hydroxy-5'-(S)-hydroxymethyl-tetrahydrofuranyl purines and pyrimidines were synthesized by the reaction of 3,4-epoxy-5-(S,trans)-dimethoxymethyl-tetrahydrofuran and nucleobases under the catalysis of potassium tert-butoxide and 18-crown-6.Compounds 6a, 6c and 7b have shown significant inhibition on the growth of HL-60 cells.The phosphotriester and phosphodiester of isonucleoside 8a-d were synthesized and cytotoxic activities were reported.The conformation of isonucleosides in solution was studied by 1H NMR.Key words: isonucleoside; cytotoxicity; anti-HSV type I and HSV type II; conformation; stereochemistry.

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