34646-21-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 34646-21-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,4,6,4 and 6 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 34646-21:
(7*3)+(6*4)+(5*6)+(4*4)+(3*6)+(2*2)+(1*1)=114
114 % 10 = 4
So 34646-21-4 is a valid CAS Registry Number.
34646-21-4Relevant academic research and scientific papers
2- and 4-Pyridones by Oxidative Demethylation of 2- and 4-Methylpyridinium Cations
Katritzky, Alan R.,Patel, Ranjan C.,Shanta, Mohammed
, p. 1888 - 1889 (2007/10/02)
1-Substituted-2- and -4-methylpyridinium cations are converted by pentyl or ethyl nitrite and sodium methoxide into 1-substituted-2- and -4-pyridones respectively.
