27039-13-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 27039-13-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,7,0,3 and 9 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 27039-13:
(7*2)+(6*7)+(5*0)+(4*3)+(3*9)+(2*1)+(1*3)=100
100 % 10 = 0
So 27039-13-0 is a valid CAS Registry Number.
27039-13-0Relevant articles and documents
Synthesis of 2(1H)-pyridones from 2H-pyran-2-ones
Kvita
, p. 883 - 884 (2007/10/02)
5-Substituted and 4,5-disubstituted 2(1H)-pyridones (13 examples) with formyl, acyl, alkoxycarbonyl, and trifluoromethyl groups in the 5 position were prepared in 16-97% yield by amination of the corresponding 2H-pyran-2-ones with hexamethyldisilazane or alkyl(trimethylsilyl)amines.
