1262643-19-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1262643-19-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,6,2,6,4 and 3 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1262643-19:
(9*1)+(8*2)+(7*6)+(6*2)+(5*6)+(4*4)+(3*3)+(2*1)+(1*9)=145
145 % 10 = 5
So 1262643-19-5 is a valid CAS Registry Number.
1262643-19-5Relevant articles and documents
Intramolecular oxidative C-H coupling for medium-ring synthesis
Pintori, Didier G.,Greaney, Michael F.
, p. 1209 - 1211 (2011)
An oxidative C-H coupling is described for medium-ring synthesis.