423116-19-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 423116-19-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,2,3,1,1 and 6 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 423116-19:
(8*4)+(7*2)+(6*3)+(5*1)+(4*1)+(3*6)+(2*1)+(1*9)=102
102 % 10 = 2
So 423116-19-2 is a valid CAS Registry Number.
423116-19-2Relevant articles and documents
Synthesis of some unsymmetrical bridged terpyridines
Kelly, T. Ross,Lebedev, Rimma L.
, p. 2197 - 2205 (2007/10/03)
Novel unsymmetrical terpyridines 1 and 2 are synthesized using intra- and intermolecular Michael additions as the key reactions, followed by the construction of the central pyridine ring. Terpyridine 1 represents a heretofore unknown hexacyclic ring system.
