139462-22-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 139462-22-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,9,4,6 and 2 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 139462-22:
(8*1)+(7*3)+(6*9)+(5*4)+(4*6)+(3*2)+(2*2)+(1*2)=139
139 % 10 = 9
So 139462-22-9 is a valid CAS Registry Number.
139462-22-9Relevant academic research and scientific papers
Asymmetric Synthesis of Calyculin A. 2. The C26-C37 γ-Amino Acid Fragments
Evans, David A.,Gage, James R.,Leighton, James L.,Kim, Annette S.
, p. 1961 - 1963 (2007/10/02)
New chiral imide enolate alkylation, aldol, and Michael addition bond constructions have been employed in the asymmetric synthesis of the C26-C37 portion of calyculin A.
