220656-93-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 220656-93-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,0,6,5 and 6 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 220656-93:
(8*2)+(7*2)+(6*0)+(5*6)+(4*5)+(3*6)+(2*9)+(1*3)=119
119 % 10 = 9
So 220656-93-9 is a valid CAS Registry Number.
220656-93-9Relevant academic research and scientific papers
Selective alkoxycarbonylation of 2,3-dichloropyridines
Bessard, Yves,Roduit, Jean Paul
, p. 393 - 404 (2007/10/03)
2,3-Dichloropyridines undergo a motto- or a dicarbonylation in the presence of carbon monoxide, an alcohol and a palladium catalyst, affording selectively either alkyl 3-chloropicolinates, or dialkyl pyridine-2,3- dicarboxylates in good yields, depending on the reaction conditions.
