C13H9NO

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C13H9NO is a chemical formula that can describe several different compounds. All of them have 13 carbon atoms, 9 hydrogen atoms, 1 nitrogen atom, and 1 oxygen atom. Their molar mass is about 195.22 g/mol, and the exact mass is 195.0684 u.

Because different structures can share the same formula, C13H9NO may refer to more than one substance. These different substances are called isomers. Each isomer has its own arrangement of atoms and unique properties, even though they share the same numbers of atoms.

To identify a specific C13H9NO, scientists compare how the atoms are connected and use precise names or diagrams, such as IUPAC names, SMILES, or InChI strings.