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FTIR ANALYSIS REPORT

FTIR Spectrum Analysis Report

No.: 20250725132632575197542 Date: Reported by: FTIR.fun Contact: [email protected]

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Top15

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Top 15 candidates

Reference library candidates

Rank Match % Compound Name Formula / SMILES Library preview Action
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Based on the library matches and evidence above.

Conclusion

paraffinic long-chain aliphatic hydrocarbon or wax-like material

Low confidence
Conclusion
  1. The 2918 cm-1 absorption is consistent with alkyl/CH2 antisymmetric C-H stretching [1].
  2. The 1462 cm-1 band is directly supported as a paraffin-associated feature, consistent with methylene deformation in a wax-like saturated chain [1].
  3. The 2849 cm-1 band is consistent with CH2 symmetric stretching in alkyl C-H groups [2].
Evidence & interpretation
Evidence

Key evidence

Library lead candidate
1-Bromodocosane #114
Limitations

Evidence that limits the conclusion

  • The available bands are common saturated alkyl features; they are insufficient for an entity-level assignment.
  • The absence of a reported C-Br region or other substituent-specific bands prevents confirmation of a specific brominated long-chain alkane.
  • Paraffin wax, polyethylene-like material, lipid/fatty-chain residue, and long-chain alkyl derivatives remain difficult to separate from these three bands alone.
  • A firmer conclusion would require additional fingerprint-region peaks and comparison with an authentic reference spectrum.
Recommendation

Suggested next verification

  • Inspect the lower-wavenumber region for C-Br/C-Cl bands and for polyethylene or paraffin crystallinity features near the 730/720 cm-1 region.
  • Check the 1800-1500 cm-1 and 3600-3000 cm-1 regions for carbonyl, carboxylate, amide, hydroxyl, or N-H bands that would indicate lipid, oxidized, or biomolecular components.
Peak analysis

Detected peaks and interpretation

★ = Literature-supported peak assignment.

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Index Characteristic Wavenumber Absorbance Evidence One-line interpretation Citation Confidence
1 ★ 2918 1.00 Literature-supported assignment The band at 2918 cm-1 is assigned to alkyl C-H vibration. [4] High confidence
2 ★ 2849 0.61 Literature-supported assignment The band at 2849 cm-1 is assigned to alkyl C-H vibration. [3] High confidence
3 ★ 1462 0.10 Literature-supported assignment The band at 1462 cm-1 is assigned to paraffin. [1] High confidence
Literature

References

No. Title DOI Page
[1] Al Jedani 等 - 2020 - A de-waxing methodology for scanning probe microsc 10.1039/d0ay00965b -
[2] Sotoudehnia 和 McDonald - 2022 - Upgrading Mixed Agricultural Plastic and Lignocell 10.3390/catal12111381 15
[3] Weaver 等 - 2022 - Microfluidic-mediated self-assembly of phospholipi 10.1016/j.ijpharm.2021.121347 24
[4] Verma 等 - 2022 - Synthesis of N-Benzylideneaniline by Schiff base r 10.1038/s41598-022-13360-5 4
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Appendix

Sample information and raw spectrum

Original uploaded spectrum for reference and verification.

Baseline correction method: Asymmetric Least Squares Smoothing

The wavelength range for analysis(cm-1): N/A

Raw spectrum without baseline correction or other processing:

Sample spectrum image
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