1307725-20-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1307725-20-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,0,7,7,2 and 5 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1307725-20:
(9*1)+(8*3)+(7*0)+(6*7)+(5*7)+(4*2)+(3*5)+(2*2)+(1*0)=137
137 % 10 = 7
So 1307725-20-7 is a valid CAS Registry Number.
1307725-20-7Relevant articles and documents
Iron-catalyzed cycloaddition of alkynenitriles and alkynes
Dsouza, Brendan R.,Lane, Timothy K.,Louie, Janis
, p. 2936 - 2939 (2011)
The combination of Fe(OAc)2 and an electron-donating, sterically hindered pyridyl bisimine ligand catalyzes the cycloaddition of alkynenitriles and alkynes. A variety of substituted pyridines were obtained in good yields.