81115-33-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 81115-33-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,1,1 and 5 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 81115-33:
(7*8)+(6*1)+(5*1)+(4*1)+(3*5)+(2*3)+(1*3)=95
95 % 10 = 5
So 81115-33-5 is a valid CAS Registry Number.
81115-33-5Relevant academic research and scientific papers
Intramolecular Addition of Enolates to Pyridinium Ions: Formation of Spiro
Weller, Dwight D.,Luellen, Glenn R.,Weller, Doreen L.
, p. 3061 - 3067 (2007/10/02)
Intramolecular addition of ketone and ester enolates to N-alkylpyridinium species produced spiro in 82-93percent yields.When the ketone adducts were treated with hydriodic acid in ethanol at room temperature and the est
