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309250-57-5

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309250-57-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 309250-57-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,0,9,2,5 and 0 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 309250-57:
(8*3)+(7*0)+(6*9)+(5*2)+(4*5)+(3*0)+(2*5)+(1*7)=125
125 % 10 = 5
So 309250-57-5 is a valid CAS Registry Number.

309250-57-5Downstream Products

309250-57-5Relevant academic research and scientific papers

Preparation of 2,2'-anhydronucleosides: Regio- and stereoselective modifications of the base and sugar moieties

Robles, Rafael,Rodriguez, Concepcion,Izquierdo, Isidoro,Plaza, Maria T.,Mota, Antonio,De Cienfuegos, Luis Alvarez

, p. 3069 - 3077 (2007/10/03)

2'-Deoxy-2'-iodonucleosides 4-9, obtained from suitably protected furanoid glycals 1 and 2 with different silylated pyrimidine bases, were transformed into the corresponding 2,2'-anhydronucleosides 10-15 with inversion of the configuration at C-2', by hea

Synthesis of β-D-xylofuranosyl- and 2,2'-anhydro-1-β-D-lyxofuranosylpyrimidine nucleosides

Tolstikov, G.A.,Mustafin, A.G.,Gataullin, R.R.,Spirikhin, L.V.,Sultanova, V.S.,Abdrakhmanov, I.B.

, p. 1095 - 1099 (2007/10/02)

β-D-Xylofuranosylpyrimidines were obtained by condensation of silyl derivatives of pyrimidines with 1,2-di-O-acetyl-3,5-di-O-benzoyl-D-xylofuranose with subsequent deprotection of the sugar fragment.Refluxing 2-O-tosyl derivatives of nucleosides with NaI

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