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174358-90-8

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174358-90-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 174358-90-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,4,3,5 and 8 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 174358-90:
(8*1)+(7*7)+(6*4)+(5*3)+(4*5)+(3*8)+(2*9)+(1*0)=158
158 % 10 = 8
So 174358-90-8 is a valid CAS Registry Number.

174358-90-8Relevant articles and documents

Synthesis of phosphonate isosteres of 2′-deoxy-1′,2′-seco-nucleotides

El-Subbagh, Hussein I.,Racha, Saibaba,Abushanab, Elie,Panzica, Raymond P.

, p. 890 - 894 (2007/10/03)

Practical and convergent syntheses of 2′-deoxy-1′,2′-seco-nucleophosphonates and 1′,2′-seco-nucleophosphonates are described. Phosphonate chirons derived from D-isoascorbic acid were used in alkylation of functionalized nucleobases to provide the title phosphonate isosteres in good yields. Subsequent deprotection and deesterification led to the 5′-C-methylenephosphonic acids which were conveniently purified using gravity flow C18 reverse phase column chromatography.

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