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201663-88-9

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201663-88-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 201663-88-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,1,6,6 and 3 respectively; the second part has 2 digits, 8 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 201663-88:
(8*2)+(7*0)+(6*1)+(5*6)+(4*6)+(3*3)+(2*8)+(1*8)=109
109 % 10 = 9
So 201663-88-9 is a valid CAS Registry Number.

201663-88-9Relevant articles and documents

AlCl3-mediated migration of benzamido group of N-phenoxybenzamide derivatives to the phenyl group

Miyazawa, Etsuko,Sakamoto, Takeshi,Kikugawa, Yasuo

, p. 7 - 12 (2007/10/03)

AlCl3-mediated decomposition of N-phenoxybenzamide derivatives in dichloromethane mainly leads to regioselective intramolecular migration of benzamido group from the oxygen to the ortho position of the phenyl group via electron-deficient nitrogen intermediates.

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