Cas 1242069-26-6,trifluoromethanesulfonic acid 5-bromo-2-trimethylsilanyl-phenyl ester

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Check Digit Verification of cas no

The CAS Registry Mumber 1242069-26-6 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,4,2,0,6 and 9 respectively; the second part has 2 digits, 2 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1242069-26:
(9*1)+(8*2)+(7*4)+(6*2)+(5*0)+(4*6)+(3*9)+(2*2)+(1*6)=126
126 % 10 = 6
So 1242069-26-6 is a valid CAS Registry Number.

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1242069-26-6Relevant articles and documents

An alkynylboronate cycloaddition strategy to functionalised benzyne derivatives

Kirkham, James D.,Delaney, Patrick M.,Ellames, George J.,Row, Eleanor C.,Harrity, Joseph P. A.

supporting information; experimental part, p. 5154 - 5156 (2010/10/19)

A new approach to benzyne precursors has been developed that involves the [4+2] cycloaddition of trimethylsilyl alkynylboronates with 2-pyrones, followed by oxidation and trifluoromethylsulfonylation of the boronate moiety. The Royal Society of Chemistry

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CAS

1242069-26-6