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343309-51-3

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343309-51-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 343309-51-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,4,3,3,0 and 9 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 343309-51:
(8*3)+(7*4)+(6*3)+(5*3)+(4*0)+(3*9)+(2*5)+(1*1)=123
123 % 10 = 3
So 343309-51-3 is a valid CAS Registry Number.

343309-51-3Downstream Products

343309-51-3Relevant articles and documents

Catalytic Carbonylative Double Cyclization of 2-(3-Hydroxy-1-yn-1-yl)phenols in Ionic Liquids Leading to Furobenzofuranone Derivatives

Mancuso, Raffaella,Miliè, Rossana,Palumbo Piccionello, Antonio,Olivieri, Diego,Della Ca, Nicola,Carfagna, Carla,Gabriele, Bartolo

supporting information, p. 7303 - 7311 (2019/06/17)

A catalytic carbonylative double cyclization method for the synthesis of furo[3,4-b]benzofuran-1(3H)-ones is reported. It is based on the reaction between readily available 2-(3-hydroxy-1-yn-1-yl)phenols, CO, and oxygen carried out in the presence of cata

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