Start Analysis Task
Learn About FTIR In-Depth Interpretation →Upload a spectrum file or spectrum image to run library search and generate an FTIR interpretation report.
Find Spectra
Search infrared spectra from our database by ID, IUPAC, CAS, or product name.
Result Review
Upload a spectrum data file along with a report containing search results (with similarity scores), or directly paste the search results. The system will review and verify the reliability of the results, provide a confidence assessment, and analyze the characteristic peaks.
Expert Custom Services
View supported service types before submitting your request.
Dual-spectrum consistency verification
Compare two infrared spectra to determine if samples are compositionally consistent. Suitable for forensics, QC, and failure analysis.
Academic characteristic peak assignment
Provide assignment and standard description of characteristic peaks for papers, projects, and reports.
Complex Sample Qualitative & Compositional Analysis
Expert-assisted analysis for complex samples not easily identified by automatic search.
Other IR-related custom technical services
Includes IR testing consultation, case studies, and other customized technical support.
Latest Discussions
View all →Resultsinspect-entity-packet-ftir
4-nitrobenzaldehyde, FTIR.fun spectrum number:13530, similarity:0.709
Resultsinspect-entity-packet
4-nitrobenzaldehyde, FTIR.fun spectrum number:13530, similarity:0.709
Resultstest1opt1
The spectrum displays a carbonyl doublet at 1724/1740 cm⁻¹, nitro group vibrations at 1351 and 1550 cm⁻¹, aromatic C–H stretch at 3088 cm⁻¹,…
Resultsinspect-packet-save
4-nitrobenzaldehyde, FTIR.fun spectrum number:13530, similarity:0.709