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712273-21-7

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712273-21-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 712273-21-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,1,2,2,7 and 3 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 712273-21:
(8*7)+(7*1)+(6*2)+(5*2)+(4*7)+(3*3)+(2*2)+(1*1)=127
127 % 10 = 7
So 712273-21-7 is a valid CAS Registry Number.

712273-21-7Downstream Products

712273-21-7Relevant articles and documents

Extending Pummerer reaction chemistry. Application to the oxidative cyclization of indole derivatives

Feldman, Ken S.,Vidulova, Daniela Boneva

, p. 1869 - 1871 (2007/10/03)

Matrix presented. Treatment of 2-(phenylsulfinyl)indoles bearing a pendant nucleophile at C(3) with Tf2O/lutidine triggers a Pummerer-like cyclization to furnish 3,3-spirocyclic-2-(phenylthio)indolenine products, which can, in turn, be hydrolyzed to 3,3-spirocyclic oxindoles.

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