Chemistry is traditionally divided into organic and inorganic chemistry. HPLC of Formula: C3H3NO, The former is the study of compounds containing at least one carbon-hydrogen bonds.In a patent，Which mentioned a new discovery about 288-14-2
Low energy, low intensity shake-up satellites are observed in the various energy regions of the XPS spectra of imidazole, pyrazole, thiazole, isothiazole and isooxazole.Their energy and intensity trends are the same as those previously observed for furan, thiophen and pyrrole and semiquantitatively reproduced by CNDO/S-CI calculations.They derive from ?-?* transitions of pseudo-b1 symmetry usually involving charge transfer away from the core-ionized atom towards adjacent atoms, often from the heteroatom X (X = O,S,NH) towards the ring.
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Reference：
Isoxazole – Wikipedia,
Isoxazole | C3H3NO – PubChem