223409-59-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 223409-59-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,3,4,0 and 9 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 223409-59:
(8*2)+(7*2)+(6*3)+(5*4)+(4*0)+(3*9)+(2*5)+(1*9)=114
114 % 10 = 4
So 223409-59-4 is a valid CAS Registry Number.
223409-59-4Relevant academic research and scientific papers
Osorio-Olivares, Mauricio,Cassels, Bruce K.,Sepulveda-Boza, Silvia,Rezende, Marcos Caroli
, p. 815 - 819 (1999)
A novel route to 5,7-dimethoxy-6-hydroxyflavone is described, involving the cyclization of an intermediate phosphorane as the key step.
