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1612227-86-7

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1612227-86-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1612227-86-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,1,2,2,2 and 7 respectively; the second part has 2 digits, 8 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1612227-86:
(9*1)+(8*6)+(7*1)+(6*2)+(5*2)+(4*2)+(3*7)+(2*8)+(1*6)=137
137 % 10 = 7
So 1612227-86-7 is a valid CAS Registry Number.

1612227-86-7Relevant articles and documents

N-Heterocyclic carbene copper(i) complex-catalyzed synthesis of 2-aryl benzoxazoles and benzothiazoles

Urzúa, Julio I.,Contreras, Renato,Salas, Cristian O.,Tapia, Ricardo A.

, p. 82401 - 82408 (2016)

A new and efficient synthesis of 2-arylbenzoxazoles and benzothiazoles using a copper N-heterocyclic carbene complex is described. In a simple protocol a variety of 2-substituted benzoxazoles and benzothiazoles were obtained via intramolecular coupling cyclization of 2-haloanilides/2-halothioanilides in good to excellent yields.

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