RESULT PAGE

aromatic / methoxy organic material

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Result No.: 20250907191657090151595 Owner: publicuser Comments: 1
FTIR Analysis Report Low confidence

aromatic / methoxy organic material

Sample & Measurement Parameters

Report No. 20250907191657090151595
Date
Spectral Range (cm⁻¹) N/A
Baseline AsLS baseline correction
Library match 29%

Identification Result

29%

The FTIR spectrum of the sample is dominated by aliphatic C-H stretching and deformation bands, with evidence of aromatic ring vibrations, indicating an aromatic/methoxy-containing hydrocarbon material. The reference library comparison points to an aromatic / methoxy consensus, but the exact identity could not be confirmed due to very low match similarity and absence of heteroatom-specific signals FTIR In-Depth Interpretation was not selected for this task, so this section shows the library-search result only and no deep AI interpretation was run.

Detailed interpretation

  • Top library match: Polyamide resin #38323
  • No definitive spectral features characteristic of polyamide (e.g., amide I near 1640 cm⁻¹, amide II near 1540 cm⁻¹) are observed, making the library's top-1 candidate Polyamide resin unlikely.
  • The possibility of methoxy or ether linkages, while consistent with library supporting groups, remains unconfirmed due to the lack of distinct C-O stretching bands in the recorded spectrum.
  • The library similarity is 0.000 and confidence is low (15%), S-O the material direction is broad and uncertain.
  • The sample peaks are limited to C-H stretching/bending and aromatic ring vibrations; specific functional groups such as methoxy cannot be confirmed without additional bands below 1300 cm⁻¹.
  • Due to the absence of strong heteroatom bands (N-H, O-H, C=O, C-O), the exact chemical class remains ambiguous.

Recommended next steps: Acquire an extended spectrum covering the fingerprint region (400–1300 cm⁻¹) to detect methoxy C-O stretch (~1250 cm⁻¹) and other aromatic substitution patterns. Perform additional analytical techniques (e.g., NMR, mass spectrometry, or elemental analysis) to confirm the presence of aromatic rings and any heteroatoms. If this sample is suspected to be a polymer, compare with reference spectra of polystyrene or similar aromatic polymers to verify.

Library Comparison

Library spectrum will appear here.

Library Search Results — Top 15 Candidates

Rank Match % Compound SMILES Spectrum No. Action
Loading library candidates...

Peak Analysis

★ = Literature-supported assignment
# Wavenumber (cm⁻¹) Absorbance Assignment Citation Assignment status
1 · 2926 1.00 - - -
2 · 2962 0.41 - - -
3 · 1379 0.13 - - -
4 · 1454 0.10 - - -

Appendix — Raw Spectrum

Raw sample spectrum
Generated by FTIR.fun — Report #20250907191657090151595
Discussion

Comments and follow-up evidence

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