185515-97-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 185515-97-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,5,5,1 and 5 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 185515-97:
(8*1)+(7*8)+(6*5)+(5*5)+(4*1)+(3*5)+(2*9)+(1*7)=163
163 % 10 = 3
So 185515-97-3 is a valid CAS Registry Number.
185515-97-3Relevant academic research and scientific papers
Formal synthesis of (-)-calicheamicinone and of (+)-calicheamicinone
Clive, Derrick L. J.,Selvakumar, Natesan
, p. 2543 - 2544 (2007/10/03)
An asymmetric Diels-Alder reaction between ketene acetal 2 and the 3-nitropropenoate 10, derived from (-)-8-phenyl-menthol, affords the optically pure adduct 15, which can be converted into either enantiomer of calicheamicinone 1.
