123534-51-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 123534-51-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,3,5,3 and 4 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 123534-51:
(8*1)+(7*2)+(6*3)+(5*5)+(4*3)+(3*4)+(2*5)+(1*1)=100
100 % 10 = 0
So 123534-51-0 is a valid CAS Registry Number.
123534-51-0Relevant articles and documents
A Facile and Concise Synthesis of 2-Alkyl- and 2-Aryl-4-oxo-4H-thiopyranopyridines
Couture, Axel,Grandclaudon, Pierre,Huguerre, Eric
, p. 456 - 457 (1989)
2-Alkyl- and 2-aryl-4-oxo-4H-thiopyranopyridine can be conveniently prepared by reacting the appropriate aromatic and aliphatic O-ethyl thiocarboxylates with the sodium derivative of various alkyl 3-(2-bromopyridyl) ketones.