137956-19-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 137956-19-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,7,9,5 and 6 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 137956-19:
(8*1)+(7*3)+(6*7)+(5*9)+(4*5)+(3*6)+(2*1)+(1*9)=165
165 % 10 = 5
So 137956-19-5 is a valid CAS Registry Number.
137956-19-5Relevant academic research and scientific papers
Graf
, p. 519 - 521 (1992)
The synthesis of three new tetradentate ligands containing both 2.2'-bipyridine and 1,2,4-triazine subunits bridged by an ethyl chain is reported.
