{{DISPLAYTITLE:C<sub>13</sub>H<sub>9</sub>NO}}{{Related molecular formulas|C=13|H=9|N=1|O=1}} The molecular formula '''C<sub>13</sub>H<sub>9</sub>NO''' (molar mass: 195.22 g/mol, exact mass: 195.0684 u) may refer to:
* Acridone * CR gas, or dibenzoxazepine
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