128004-80-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 128004-80-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,0,0 and 4 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 128004-80:
(8*1)+(7*2)+(6*8)+(5*0)+(4*0)+(3*4)+(2*8)+(1*0)=98
98 % 10 = 8
So 128004-80-8 is a valid CAS Registry Number.
128004-80-8Relevant 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.