81998-07-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 81998-07-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,9,9 and 8 respectively; the second part has 2 digits, 0 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 81998-07:
(7*8)+(6*1)+(5*9)+(4*9)+(3*8)+(2*0)+(1*7)=174
174 % 10 = 4
So 81998-07-4 is a valid CAS Registry Number.
81998-07-4Relevant academic research and scientific papers
Synthesis of Side-Chain Derivatives of 2,2'-Bipyridine
Ciana, Leopoldo Della,Hamachi, Itaru,Meyer, Thomas J.
, p. 1731 - 1735 (2007/10/02)
General and varsatile synthetic methods have been developed for the preparation of a large variety of 2,2'-bipyridines bearing a single functionalized side chain in the 4-position.
