137520-76-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 137520-76-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,7,5,2 and 0 respectively; the second part has 2 digits, 7 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 137520-76:
(8*1)+(7*3)+(6*7)+(5*5)+(4*2)+(3*0)+(2*7)+(1*6)=124
124 % 10 = 4
So 137520-76-4 is a valid CAS Registry Number.
137520-76-4Relevant academic research and scientific papers
Synthesis of highly functionalized 3-(3-pyridyl)pyrrolidine and 3-(3-pyridyl)pyrroles
Deprez,Royer,Husson
, p. 759 - 762 (2007/10/02)
Highly functionalized 3-(3-pyridyl)pyrrolidines can be readily prepared via a 1,3-dipolar cycloaddition reaction between 3-cyano-methyl-4-phenyl-1,3-oxazolidine (1) and methyl 3-(3-pyridyl)-acrylate (2) or 3-(2-nitroethenyl)pyridine (3). The stereochemist
