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274917-70-3

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274917-70-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 274917-70-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,7,4,9,1 and 7 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 274917-70:
(8*2)+(7*7)+(6*4)+(5*9)+(4*1)+(3*7)+(2*7)+(1*0)=173
173 % 10 = 3
So 274917-70-3 is a valid CAS Registry Number.

274917-70-3Relevant articles and documents

Carbon isotope labeling of carbamates by late-stage [11C], [13C] and [14C]carbon dioxide incorporation

Del Vecchio, Antonio,Talbot, Alex,Caillé, Fabien,Chevalier, Arnaud,Sallustrau, Antoine,Loreau, Olivier,Destro, Gianluca,Taran, Frédéric,Audisio, Davide

supporting information, p. 11677 - 11680 (2020/10/19)

A general procedure for the late-stage [11C], [13C] and [14C]carbon isotope labeling of cyclic carbamates is reported. This protocol allows the incorporation of carbon dioxide, the primary source of carbon-14 and carbon-11 radioisotopes, in a direct, cost-effective and sustainable manner. A disconnection/reconnection strategy, involving ring opening/isotopic closure, was also implemented.

A simple route to polysubstituted indoles exploiting azide induced furan ring opening

Abaev, Vladimir T.,Plieva, Anastasiya T.,Chalikidi, Petrakis N.,Uchuskin, Maxim G.,Trushkov, Igor V.,Butin, Alexander V.

supporting information, p. 4150 - 4153 (2014/09/30)

A straightforward, efficient indole synthesis based on thermolysis of 2-(2-azidobenzyl)furans with attack of the formed nitrene moiety onto the ipso position of furan ring has been developed. The cyclization is accompanied by furan ring opening and affords indoles with a 2-acylvinyl substituent suitable for further modifications.

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