The sample exhibits a pattern characteristic of a secondary amide (polyamide) material, with strong amide I (1633 cm⁻¹), amide II (1536 cm⁻¹), and N–H stretch (3292 cm⁻¹) accompanied by prominent aliphatic C–H stretches (2928, 2855 cm⁻¹) and bands consistent with amide III/CH₂ rocking (1261 cm⁻¹) and C–N/C–O vibrations (1120–1198 cm⁻¹). The reference library comparison suggests an aliphatic amide (N-hexylhexanediamide) as the top candidate, while a broader library consensus and spectral features point to aromatic contributions and possible methacrylate/acrylate residues, though no pronounced ester carbonyl is observed. The overall classification is an aromatic–aliphatic amide-rich polymer, but the low search similarity (15%) precludes a precise entity assignment FTIR In-Depth Interpretation was not selected for this task, so this section shows the library-search result only and no deep AI interpretation was run.