The main component may be a nitrobenzaldehyde derivative. The spectrum exhibits aromatic C–H stretching at 3088 cm⁻¹ and ring vibrations at 1613 and 1550 cm⁻¹, along with aldehyde Fermi resonance doublet at 2778 and 2841 cm⁻¹ indicative of an aryl aldehyde. Strong carbonyl absorption at 1724 cm⁻¹ (with a shoulder near 1740 cm⁻¹) is consistent with a conjugated aldehyde. Prominent bands at 1351 and 1335 cm⁻¹, together with the 1550 cm⁻¹ band, are characteristic of aromatic nitro substitution. The overall spectral pattern matches a nitrobenzaldehyde. Confirmatory NMR or mass spectrometry would help resolve the exact isomer and substitution pattern