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55202-09-0

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55202-09-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 55202-09-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,5,2,0 and 2 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 55202-09:
(7*5)+(6*5)+(5*2)+(4*0)+(3*2)+(2*0)+(1*9)=90
90 % 10 = 0
So 55202-09-0 is a valid CAS Registry Number.

55202-09-0Relevant articles and documents

Halogenation Using Quaternary Ammonium Polyhalides. XI. Bromination of Acetanilides by Use of Tetraalkylammonium Polyhalides

Kajigaeshi, Shoji,Kakinami, Takaaki,Yamasaki, Hiromichi,Fujisaki, Shizuo,Okamoto, Tsuyoshi

, p. 2681 - 2683 (2007/10/02)

The reaction of acetanilides with tetraalkylammonium polyhalides, such as tetrabutylammonium tribromide, benzyltrimethylammonium tribromide, and benzyltrimethylammonium chlorobromate(1-), in dichloromethane-methanol at room temperature gave bromosubstituted acetanilides in good yields, respectively.

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