• Top library match: Glycerol #10947

• Although the library ranks glycerol as the top match, the spectrum exhibits bands (917, 1414 cm⁻¹) and a library consensus pattern that cannot be explained by pure glycerol alone; the sample likely contains additional amide- or aromatic-bearing components or is a glycerol derivative.
• The exact ratio of polyol, amide, and aromatic substructures remains unresolved from FTIR alone, and the material may be a mixture rather than a single compound.

Recommended next steps: Perform GC–MS or NMR analysis to confirm the presence of glycerol and to identify any nitrogen-containing or aromatic additives. Carry out solubility tests: if the sample is readily water-soluble, this would support a polyol-rich composition, whereas insoluble fractions would point to a more hydrophobic aromatic/amide-rich phase. Use derivatisation (e.g., silylation) followed by GC–MS to resolve the number of hydroxyl groups and possible amide/aromatic functionalization.