111339-40-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 111339-40-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,1,3,3 and 9 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 111339-40:
(8*1)+(7*1)+(6*1)+(5*3)+(4*3)+(3*9)+(2*4)+(1*0)=83
83 % 10 = 3
So 111339-40-3 is a valid CAS Registry Number.
111339-40-3Relevant academic research and scientific papers
Intramolecular 1,3-Dipolar Cycloadditions of Aryl Azides with Alkynyl Substituents
Rudorf, W.-D.,Janietz, D.
, p. 55 - 61 (2007/10/02)
Reaction of substituted 4-chlorobut-2-ynes 1 with 2-acetaminophenol and 2-aminothiophenol, respectively, leads to the corresponding ethers and thioethers 3 that can be converted into the alkynyl substituted aryl azides 4 by diazotation and reaction with s
