• Top library match: 4-(oxiran-2-ylmethoxy)-N,N-bis(oxiran-2-ylmethyl)aniline #70706

1. The spectrum is dominated by absorptions typical of a substituted aromatic amine epoxy compound, consistent with the top library match to a trifunctional epoxidized aniline. Aromatic ring stretching bands appear at 1503–1519 cm⁻¹, and C–O modes in the 1178–1293 cm⁻¹ region are compatible with aryl–O–C and oxirane/ether linkages. Aliphatic C–H stretches near 2933–2981 cm⁻¹ support the presence of methylene and oxirane-ring hydrogens. However, a distinct band at 1366 cm⁻¹ is assigned to an amide C–N vibration, a functionality that is absent in the proposed triglycidyl aniline structure. This band suggests either a C-O‑component, an additive, or an impurity bearing amide groups, and it prevents a confident assignment to the pure compound alone. Therefore, the material is broadly classified as an aromatic epoxy/amine system with probable amide moieties.

• The library hit (4‑(oxiran‑2‑ylmethoxy)‑N,N‑bis(oxiran‑2‑ylmethyl)aniline) contains no amide functionality, yet the sample displays an amide band at 1366 cm⁻¹ [1]. This discrepancy argues against the sample being that pure compound alone.
• The nature and origin of the amide‑bearing component are unknown; it could be an additive, a formulation C-O‑monomer, or a contaminant.
• Without additional separation or complementary analytical data, the exact composition and the relative proportions of the epoxy‑amine and amide‑containing species remain undetermined.

Recommended next steps: Perform LC‑MS or ¹H/¹³C NMR spectroscopy to identify the amide component and verify the molecular structure of the major species. Determine the epoxy equivalent weight by chemical titration to confirm the presence of epoxide groups and estimate the content of the epoxidized aniline. Thermal analysis (DSC/TGA) may help to assess whether the material is a single multi‑functional epoxy resin or a blend.