226920-86-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 226920-86-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,6,9,2 and 0 respectively; the second part has 2 digits, 8 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 226920-86:
(8*2)+(7*2)+(6*6)+(5*9)+(4*2)+(3*0)+(2*8)+(1*6)=141
141 % 10 = 1
So 226920-86-1 is a valid CAS Registry Number.
226920-86-1Relevant articles and documents
Diethyl 2-aryl-3-cyanopropene-1,1-dicarboxylates: New versatile precursors in heterocyclic synthesis
Erian, Ayman W.,Araki, Vivian F.,Aziz, Suzan I.,Sherif, Sherif M.
, p. 661 - 669 (1999)
An expeditious synthetic route for the title precursor is reported. It provides access to a variety of polyfunctionally substituted pyridines, pyridazines, pyrazolopyridines, thiophenes, and thienopyridines.
