4-Phenylazepane

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4-Phenylazepane, also known as phenazepane, is an organic compound with the formula C12H17N and a molar mass of about 175.27 g/mol. It is the core structure used to make a family of opioid analgesics. One drug derived from this structure is Meptazinol. The molecule features a seven-membered ring with nitrogen (azepane) and a phenyl group attached at the 4-position. In short, 4-phenylazepane is a chemical building block used to create opioid painkillers, rather than a medicine by itself.