452333-53-8 Usage
General Description
Pyridine, 2-ethynyl-5-nitro- (9CI) is a chemical compound with the molecular formula C7H4N2O2. It is a derivative of pyridine, a six-membered heterocyclic ring with one nitrogen atom. The compound has an ethynyl (C≡C) group attached to the second carbon atom of the pyridine ring and a nitro (NO2) group at the fifth position. It is primarily used in the pharmaceutical industry as a building block for the synthesis of various drugs and biologically active compounds. This chemical is also used in research laboratories as a reagent in organic synthesis and as a precursor in the production of agricultural chemicals and insecticides. Due to its unique structure and functional groups, Pyridine, 2-ethynyl-5-nitro- (9CI) has potential applications in medical and agricultural fields.
Check Digit Verification of cas no
The CAS Registry Mumber 452333-53-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,5,2,3,3 and 3 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 452333-53:
(8*4)+(7*5)+(6*2)+(5*3)+(4*3)+(3*3)+(2*5)+(1*3)=128
128 % 10 = 8
So 452333-53-8 is a valid CAS Registry Number.
452333-53-8Relevant articles and documents
Metal-free synthesis of 2-alkenyl/alkynyl-5-nitropyridines using a three-component ring transformation
Le, Song Thi,Asahara, Haruyasu,Nishiwaki, Nagatoshi
supporting information, p. 776 - 778 (2015/06/22)
A metal-free, facile, and efficient protocol for synthesizing a series of 2-alkenyl/alkynyl-5-nitropyridines was developed by using a three-component ring transformation of 1-methyl-3,5- dinitro-2-pyridone with α,β-unsaturated ketones and ammonium acetate
