7-Amino-3-phenylcoumarin

There are two crystallographically independent molecules (A and B) having almost the same structure in the title crystal, C₁₅H₁₁NO₂. The phenyl ring attached at the 3-position is twisted markedly out of the plane of the coumarin moiety. The dihedral angles between the phenyl and coumarin rings are 48.9 (4) and 54.4 (4)° in molecules A and B, respectively. There is a weak O...H—N intermolecular hydrogen bond between the B molecules involving the carbonyl O atom.

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