121724-14-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 121724-14-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,1,7,2 and 4 respectively; the second part has 2 digits, 1 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 121724-14:
(8*1)+(7*2)+(6*1)+(5*7)+(4*2)+(3*4)+(2*1)+(1*4)=89
89 % 10 = 9
So 121724-14-9 is a valid CAS Registry Number.
121724-14-9Relevant articles and documents
Preparation of Complexing Compounds Containing Two 2,6-bis-4-ethynylpyridine Subunits
Takalo, Harri,Haenninen, Elina,Kankare, Jouko
, p. 662 - 665 (2007/10/02)
Compounds containing two 2,6-bis-4-ethynylpyridine subunits have been prepared by coupling reactions between diiodoarenes and acetylenes in the presence of a palladium catalyst and copper(I) iodide.
