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9-{(2R,5S)-5-[Bis-(4-methoxy-phenyl)-phenyl-methoxymethyl]-tetrahydro-furan-2-yl}-1,9-dihydro-purin-6-one is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

177779-55-4

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177779-55-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 177779-55-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,7,7,7 and 9 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 177779-55:
(8*1)+(7*7)+(6*7)+(5*7)+(4*7)+(3*9)+(2*5)+(1*5)=204
204 % 10 = 4
So 177779-55-4 is a valid CAS Registry Number.

177779-55-4Relevant academic research and scientific papers

Synthesis and 1H and 13C NMR spectral characteristics of 8-bromo-2′,3′-dideoxyguanosine and 8-bromo-2′,3′-dideoxyinosine

Zeidler, Joanna,Golankiewicz, Bozenna

, p. 1077 - 1095 (2007/10/03)

Reaction of 2′,3′-dideoxyguanosine 1a as 5′-O-tert-butyldimethylsilyl derivative 1b and 2′,3′-dideoxyinosine 2a with bromine in acetate buffer conducted in heterogeneous medium afforded 8-bromo-2′,3′-dideoxyguanosine 3a (44% after deprotection) and 8-bromo-2′,3′-dideoxyinosine 4a (12%) respectively. The change of conformational preferences anti → syn on 8-bromo substitution of 2′,3′-dideoxynucleosides is reflected in the 1H and 13C NMR spectra by characteristic shifts of H-2′, H-3′, C-2′ and C-3′ signals.

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