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473918-47-7

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473918-47-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 473918-47-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,7,3,9,1 and 8 respectively; the second part has 2 digits, 4 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 473918-47:
(8*4)+(7*7)+(6*3)+(5*9)+(4*1)+(3*8)+(2*4)+(1*7)=187
187 % 10 = 7
So 473918-47-7 is a valid CAS Registry Number.

473918-47-7Relevant articles and documents

The copper-catalyzed N-arylation of indoles

Antilla, Jon C.,Klapars, Artis,Buchwald, Stephen L.

, p. 11684 - 11688 (2002)

A general method for the N-arylation of indoles using catalysts derived from Cul and trans-1,2-cyclohexanediamine (1a), trans-N,N′-dimethyl-1,2-cyclohexanediamine (2a), or N,N′-dimethyl-ethylenediamine (3) is reported. N-Arylindoles can be produced in high yield from the coupling of an aryl iodide or aryl bromide with a variety of indoles.

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