127987-43-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 127987-43-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,7,9,8 and 7 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 127987-43:
(8*1)+(7*2)+(6*7)+(5*9)+(4*8)+(3*7)+(2*4)+(1*3)=173
173 % 10 = 3
So 127987-43-3 is a valid CAS Registry Number.
127987-43-3Relevant articles and documents
AN EFFICIENT ASYMMETRIC SPIROANNULATION PROCESS
Angelo, Jean d',Ferroud, Clotilde
, p. 6511 - 6514 (2007/10/02)
After hydrolytic work-up, intramolecular Michael-type alkylation of imine 11 gave spiro adduct 13 with a high degree of control of the two newly created asymmetric centers.
