1620513-55-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1620513-55-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,2,0,5,1 and 3 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1620513-55:
(9*1)+(8*6)+(7*2)+(6*0)+(5*5)+(4*1)+(3*3)+(2*5)+(1*5)=124
124 % 10 = 4
So 1620513-55-4 is a valid CAS Registry Number.
1620513-55-4Relevant articles and documents
Cu(I)-catalyzed macrocyclic Sonogashira-type cross-coupling
Santandrea, Jeffrey,Bedard, Anne-Catherine,Collins, Shawn K.
supporting information, p. 3892 - 3895 (2014/08/18)
A macrocyclic Cu-catalyzed Sonogashira-type cross-coupling reaction has been developed that employs an operationally simple CuCl/phen/Cs 2CO3 catalyst system. Macrocyclizations can be performed at relatively high concentrations witho
