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225222-79-7

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225222-79-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 225222-79-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,5,2,2 and 2 respectively; the second part has 2 digits, 7 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 225222-79:
(8*2)+(7*2)+(6*5)+(5*2)+(4*2)+(3*2)+(2*7)+(1*9)=107
107 % 10 = 7
So 225222-79-7 is a valid CAS Registry Number.

225222-79-7Relevant articles and documents

A facile synthesis of 3-aryl-substituted-benzothiophenes via a Lewis acid mediated cyclization of 2-arylthio-acetophenones

Kim, Seongkon,Yang, Jane,DiNinno, Frank

, p. 2909 - 2912 (2007/10/03)

The boron trifluoride-etherate mediated cyclization of 2-arylthio- ketones 1a-h at ambient temperature gave 3-aryl-substituted benzothiophenes 2a-h in excellent yield. None of the rearranged 2-aryl-substituted benzothiophenes were observed.

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