The CAS Registry Mumber 186256-91-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,6,2,5 and 6 respectively; the second part has 2 digits, 9 and 1 respectively. Calculate Digit Verification of CAS Registry Number 186256-91: (8*1)+(7*8)+(6*6)+(5*2)+(4*5)+(3*6)+(2*9)+(1*1)=167 167 % 10 = 7 So 186256-91-7 is a valid CAS Registry Number.
Total synthesis of crytophycin analogues. Isosteric replacement of the C-D ester
Norman,Hemscheidt,Schultz,Andis
, p. 5288 - 5294 (2007/10/03)
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