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181259-63-2

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181259-63-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 181259-63-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,1,2,5 and 9 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 181259-63:
(8*1)+(7*8)+(6*1)+(5*2)+(4*5)+(3*9)+(2*6)+(1*3)=142
142 % 10 = 2
So 181259-63-2 is a valid CAS Registry Number.

181259-63-2Relevant articles and documents

Preparation of (2?-5?)-oligonucleotides based on 6-N- benzylaminopurineriboside using the Spicaria violacea fungal enzyme complex

Kulak,Tkachenko,Grishan,Kukharskaya,Eroshevskaya,Kalinichenko,Zinchenko

experimental part, p. 74 - 78 (2009/07/18)

A method for chemico-enzymatic synthesis of (2?-5?)-oligonucleotides with 6-N-benzylaminopurineriboside as the nucleoside units was proposed. The method consisted of enzymatic hydrolysis of the oligonucleotides with mixed (2?-5?)-(3?-5?)-phosphodiesterbonds that were prepared by polymerization of 6-N-benzyladenosine-2?(3?)-monophosphate by using (3?-5?)-specific nuclease and phosphatase contained in the filtrate of culture medium of the mycelial fungus Spicaria violacea.

N6-benzyladenosine analogs of (A2′p)2A: Synthesis and activity to tobacco mosaic virus

Kvasyuk,Kulak,Zinchenko,Barai,Mikhailopulo

, p. 181 - 187 (2007/10/03)

Analogs of (2′-5′)oligoadenylate trimer with N6-benzyladenosine in various positions of the chain and the fully substituted trimer were synthesized by the phosphotriester method. The structures of compounds prepared were proved by UV, CD, and 1H NMR. The obtained substances inhibit replication of tobacco mosaic virus at a 10-8-10-6 M concentration, which is comparable with that of natural (A2′p)2A triadenylate.

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