• Top library match: tert-Butylurea #49472

• The library’s top hit, tert‑butylurea, is an aliphatic molecule that does not account for the aromatic bands observed at 1514, 1608, and 694 cm⁻¹, S-O a pure tert‑butylurea identification cannot be upheld.
• Several library‑consistent groups, such as acetate, carboxyl, and ester, are suggested by the library similarity pattern but lack clearly resolved spectral signatures in the current sample.
• The exact identity and extent of aromatic substitution remain uncertain; the material may be a mixture of ureas or an aromatic‑substituted urea derivative.
• Without additional information (e.g., solubility, NMR), it is not possible to distinguish between a simple substituted urea, an amide‑containing polymer, or a composite that combines both functionalities.

Recommended next steps: Consider recording a high‑resolution spectrum in the 3600–2600 cm⁻¹ region to resolve individual N–H and O–H stretching components and confirm the degree of hydrogen bonding. Elemental analysis or GC–MS would clarify whether methacrylate or acetate components are genuinely present, as indicated by the library consensus. If the sample is suspected to be a mixture, fractionation (e.g., TLC, HPLC) followed by FTIR analysis of isolated components could help resolve the contributions of aromatic and aliphatic species.