• Top library match: Ethane-1,2-diol #23423

• The top commercial library match, Ethane-1,2‑diol (HOCH₂CH₂OH), cannot account for the amide and aromatic bands observed, and the low similarity score (0.503) indicates a poor chemical match.
• The exact molecular identity cannot be established from FTIR alone; the weak library match and the absence of a fully consistent reference spectrum prevent a definitive assignment.
• The 3288 cm⁻¹ band could include contributions from both O‑H and N‑H groups, and the relative intensities of aromatic versus aliphatic substituents remain ambiguous.

Recommended next steps: Confirm the presence of nitrogen‑containing functionality by X‑ray photoelectron spectroscopy (XPS) or elemental analysis. Use ¹H‑NMR or ¹³C‑NMR spectroscopy to determine the molecular backbone and differentiate amide from aromatic or secondary amine moieties. Perform mass spectrometry to obtain an exact molecular mass, which may allow a targeted library search or molecular formula generation.