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34304-58-0

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34304-58-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 34304-58-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,4,3,0 and 4 respectively; the second part has 2 digits, 5 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 34304-58:
(7*3)+(6*4)+(5*3)+(4*0)+(3*4)+(2*5)+(1*8)=90
90 % 10 = 0
So 34304-58-0 is a valid CAS Registry Number.

34304-58-0Relevant articles and documents

RNA modified uridines VII: Chemical synthesis and initial analysis of tRNA D-loop oligomers with tandem modified uridines

Nawrot,Malkiewicz,Smith,Sierzputowska-Gracz,Agris

, p. 143 - 165 (2007/10/02)

The first chemical synthesis of oligoribonucleotides with adjacent and significantly different modified uridines, the hydrophobic dihydrouridine, D, and the hydrophilic 3-[3-(S)-amino-3-carboxypropyl]-uridine, (acp)3U, is reported. The trimers Dp-acp3UpA, Up-acp3UpA, DpUpA and UpUpA, and the dimer Dp-acp3U were synthesized and initial structural analysis performed. The synthesis included a combination of protecting groups that is generally applicable to oligonucleotide syntheses in combination with various 2'OH protecting groups. The protecting groups did not cause racemization of the amino acid residue of (acp)3U during deprotection. The assignment of all 1H NMR resonances of modified nucleoside-containing oligoribonucleotides includes heteronuclear one and two dimensional NMR.

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