The main component may be a nitro-substituted aromatic aldehyde. The spectrum exhibits aldehyde C–H stretching absorptions at 2778 and 2841 cm⁻¹, together with strong carbonyl bands near 1724 and 1740 cm⁻¹, characteristic of an aromatic aldehyde. Aromatic ring vibrations appear around 1613 and 1550 cm⁻¹, and a series of intense bands between 1335 and 1351 cm⁻¹ are consistent with symmetric and asymmetric nitro group stretching. Aromatic C–H stretching is observed at 3088 cm⁻¹. The overall spectral pattern points to a mono- or dinitrobenzaldehyde. Confirmation of the exact substitution pattern and number of nitro groups could be obtained by ¹H NMR or high-resolution mass spectrometry