• Top library match: Sassafras oil #151435

• The weak band at 2071 cm⁻¹ lacks a clear assignment in the context of an oxygenated organic mixture and may arise from a minor contaminant, adsorbed C-O, or an unusual functional group.
• Direct literature support for N–H groups (3420 cm⁻¹, [4]) is not expected for a typical sassafras oil (predominantly C, H, O) and suggests the possibility of an amine/amide impurity or misassignment.
• The peak at 1646 cm⁻¹ can also be interpreted as O–H bending of water, and the broad 3420 cm⁻¹ band may be dominated by moisture, masking more specific structural information.
• No unequivocal marker bands (e.g., C–Cl, C≡N, strong carbonyl pattern) could be verified with the present evidence, leaving the exact chemical nature unresolved.

Recommended next steps: Perform gas chromatography–mass spectrometry (GC‑MS) to identify volatile organic constituents and confirm or refute the presence of sassafras oil components such as safrole. Obtain a reference FTIR spectrum of authentic Sassafras oil for direct comparison under identical measurement conditions. Use complementary techniques such as Raman spectroscopy or NMR to resolve the ambiguity between alkene unsaturation, carbonyl groups, and moisture contributions.