616890-16-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 616890-16-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,1,6,8,9 and 0 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 616890-16:
(8*6)+(7*1)+(6*6)+(5*8)+(4*9)+(3*0)+(2*1)+(1*6)=175
175 % 10 = 5
So 616890-16-5 is a valid CAS Registry Number.
616890-16-5Relevant articles and documents
Enantioselective synthesis of (-)-idiospermuline
Overman, Larry E.,Peterson, Emily A.
, p. 6905 - 6919 (2007/10/03)
The enantioselective total synthesis of the nonacyclic polypyrrolidinoindoline (-)-idiospermuline is described. Stereocontrolled formation of the vicinal quaternary carbon centers is achieved in a single step by dialkylation of an unsymmetrical prostereog