130721-72-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 130721-72-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,0,7,2 and 1 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 130721-72:
(8*1)+(7*3)+(6*0)+(5*7)+(4*2)+(3*1)+(2*7)+(1*2)=91
91 % 10 = 1
So 130721-72-1 is a valid CAS Registry Number.
130721-72-1Relevant articles and documents
DECARBOXYLATION OF CYCLIC β-ENAMINOKETOESTERS WITH BORIC ACID
Delbecq, Philippe,Celerier, Jean-Pierre,Lhommet, Gerard
, p. 4873 - 4874 (2007/10/02)
Cyclic β-enaminoketoesters prepared by condensation between lactim ethers and β-ketoesters are decarboxylated without deacylation by thermolysis in presence of boric acid to lead stereospecifically to cyclic β-enaminones.
