Chemistry is traditionally divided into organic and inorganic chemistry. HPLC of Formula: C5H5NO3, The former is the study of compounds containing at least one carbon-hydrogen bonds.In a patent，Which mentioned a new discovery about 42831-50-5
BENZIMIDAZOLE COMPOUNDS AND THEIR USE AS ESTROGEN AGONISTS/ANTAGONISTS
This invention relates to compounds, in particular benzimidazoles, that are useful as estrogen agonists and/or antagonists and pharmaceutical uses thereof. The present invention also relates to benzimidazoles that are selective for the ERss receptor and pharmaceutical uses thereof.
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Reference：
Isoxazole – Wikipedia,
Isoxazole | C3H3NO – PubChem