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69940-70-1

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69940-70-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 69940-70-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,9,9,4 and 0 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 69940-70:
(7*6)+(6*9)+(5*9)+(4*4)+(3*0)+(2*7)+(1*0)=171
171 % 10 = 1
So 69940-70-1 is a valid CAS Registry Number.

69940-70-1Downstream Products

69940-70-1Relevant articles and documents

Simplified Liquid-Phase Preparation of Four Decadeoxyribonucleotides and their Preliminary Spectroscopic Characterization

Denny, William A.,Leupin, Werner,Kearns, David R.

, p. 2372 - 2393 (2007/10/02)

Four self-complementary decadeoxyribonucleotides, dApTpApTpApTpApTpApT,dApTpApTpCpGpApTpApT, dApTpApTpGpCpApTpApT and dApApApApApTpTpTpTpT, were chemically synthesized by the phosphotriester procedure.Efforts were concentrated on keeping the procedure as simple as possible, concomitant with obtaining high-purity products at each step of the process.The decamers were elaborated from the 3'-end, starting with a 3'-O-benzoylated monomer according to the scheme: monomer + monomer -> dimer + dimer -> tetramer + dimer -> hexamer + tetramer -> decamer.Putity of intermediates and of the fully blocked decamers were monitored by chromatography and by 300-MHz 1H-NMR. spectroscopy.The deblocked decadeoxyribonucleotides were characterized by their UV., CD., and 1H-NMR. spectra.

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