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Diisopropyl-phosphoramidous acid (2R,3R,4R,5R)-5-(6-benzoylamino-purin-9-yl)-2-[bis-(4-methoxy-phenyl)-phenyl-methoxymethyl]-4-(tetrahydro-furan-2-yloxy)-tetrahydro-furan-3-yl ester methyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

109681-71-2

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109681-71-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 109681-71-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,9,6,8 and 1 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 109681-71:
(8*1)+(7*0)+(6*9)+(5*6)+(4*8)+(3*1)+(2*7)+(1*1)=142
142 % 10 = 2
So 109681-71-2 is a valid CAS Registry Number.

109681-71-2Downstream Products

109681-71-2Relevant academic research and scientific papers

Synthesis of Oligoribonucleotides via the Phosphite-Triester Approach on a Polymer Support

Tanaka, Toshiki,Fujino, Ken-ichi,Tamatsukuri, Shigeru,Ikehara, Morio

, p. 4126 - 4132 (2007/10/02)

Four ribonucleoside phosphoramidites bearing 5'-O-dimethoxytrityl and 2'-O-tetrahydrofuranyl groups were synthesized with the use of bis(diisopropylamino)-methoxyphosphine in yields of 68-92percent.By the same procedure, the phosphoramidite derivatives of

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