Cas 57028-98-5,Phenyl(2,3,4,5-tetrafluorphenyl)ethin

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Check Digit Verification of cas no

The CAS Registry Mumber 57028-98-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,7,0,2 and 8 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 57028-98:
(7*5)+(6*7)+(5*0)+(4*2)+(3*8)+(2*9)+(1*8)=135
135 % 10 = 5
So 57028-98-5 is a valid CAS Registry Number.

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57028-98-5Relevant academic research and scientific papers

Copper-Catalyzed Oxidative Cross-Coupling of Electron-Deficient Polyfluorophenylboronate Esters with Terminal Alkynes

Liu, Zhiqiang,Budiman, Yudha P.,Tian, Ya-Ming,Friedrich, Alexandra,Huang, Mingming,Westcott, Stephen A.,Radius, Udo,Marder, Todd B.

, p. 17267 - 17274 (2020)

We report herein a mild procedure for the copper-catalyzed oxidative cross-coupling of electron-deficient polyfluorophenylboronate esters with terminal alkynes. This method displays good functional group tolerance and broad substrate scope, generating cro

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