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217180-09-1

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217180-09-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 217180-09-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,7,1,8 and 0 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 217180-09:
(8*2)+(7*1)+(6*7)+(5*1)+(4*8)+(3*0)+(2*0)+(1*9)=111
111 % 10 = 1
So 217180-09-1 is a valid CAS Registry Number.

217180-09-1Relevant articles and documents

Total synthesis of bleomycin group antibiotics. Total syntheses of bleomycin demethyl A2, bleomycin A2, and decarbamoyl bleomycin demethyl A2

Katano, Kiyoaki,An, Haoyun,Aoyagi, Yoshiaki,Overhand, Mark,Sucheck, Steven J.,Stevens Jr., William C.,Hess, Cynthia D.,Zhou, Xiang,Hecht, Sidney M.

, p. 11285 - 11296 (2007/10/03)

The total syntheses of bleomycin A2 (1) by two routes are described. The final step in the synthesis of bleomycin A2 involves methylation of bleomycin demethyl A2 (2). This bleomycin derivative is of interest mechanistical

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