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133324-34-2

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133324-34-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 133324-34-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,3,3,2 and 4 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 133324-34:
(8*1)+(7*3)+(6*3)+(5*3)+(4*2)+(3*4)+(2*3)+(1*4)=92
92 % 10 = 2
So 133324-34-2 is a valid CAS Registry Number.

133324-34-2Downstream Products

133324-34-2Relevant articles and documents

32. Biosynthetic production of [N2,1,3,7,9-15N]guanosine and [1,3,7,9-15N]inosine and conversion into [N6,1,3,7,9-15N]adenosine for structure elucidation of RNA by heteronuclear NMR

Niemann,Meyer,Engeloch,Botta,Hadener,Strazewski

, p. 421 - 439 (2007/10/02)

A procedure was developed for the biosynthetic preparation of 15N-labelled guanosine and inosine through the action of a mutant Bacillus subtilis strain. Crude [N2,1,3,7,9-15N]guanosine and [1,3,7,9-15N]inosine were isolated from the culture filtrate by precipitation and anion-exchange chromatography. No cell lysis and no enzymatic degradation was necessary. The per-isobutyrylated derivatives 1 and 2 were isolated from a complex mixture, purified by virtue of their different lipophilicity, and separated in three steps involving normal- and reversed-phase silica-gel chromatography. One litre of complex nutrient medium yielded 8.44 mmol of guanosine derivative and 2.84 mmol of inosine derivative with high average 15N enrichment (83.5 and 91.9 atom-%, resp.). [N6,1,3,7,9-15N]Adenosine (4) was obtained from 2',3',5'-tri-O-isobutyryl[1,3,7,9-15N]inosine (1) through the ammonolysis of its 1,2,4-triazolyl derivative with aqueous 15NH3.

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