FTIR ANALYSIS REPORT

FTIR Spectrum Analysis Report

No.: 20250502213648339279500 Date: 2025-05-02 23:30:20 Reported by: FTIR.fun Contact: [email protected]

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Top15

Similarity-ranked Top-15 library comparison

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Library spectrum will appear here.

Infrared spectrum comparison chart. Analysis result: aliphatic organic material with C-O stretching features, possibly an ester- or ether-containing compound.

The library top hit is propan-2-yl cyclohexanecarboxylate, but the match quality is effectively absent and is not strong enough to support an identification of that specific compound. The measured spectrum is dominated by bands in the fingerprint region, especially 1034-1284 cm-1, which is consistent with C-O stretching in an aliphatic oxygen-containing organic material. However, the present peak list does not include a clear ester carbonyl band near the expected 1700-1750 cm-1 region, so a specific cyclohexanecarboxylate ester assignment is not securely supported. A broader direction of an aliphatic organic material containing C-O bonds is chemically safer on the current evidence

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Top 15 candidates

Reference library candidates

Rank	Match %	Compound Name	Formula / SMILES	Library preview	Action
Reference candidates load with this Top-15 workbench.

Based on the library matches and evidence above.

Conclusion

aliphatic organic material with C-O stretching features, possibly an ester- or ether-containing compound

General assessment

#55760 Initial rank 1 Current rank 1 Library lead match 0.0%

Conclusion

Multiple strong fingerprint-region peaks between 1034 and 1284 cm-1 support the presence of C-O stretching, which is common in ethers and esters.
The sample lacks broad O-H or obvious N-H information in the provided peak list, so a simple oxygenated aliphatic material remains more consistent than an alcohol-rich or amide-rich interpretation.
The top library candidate is an ester, and the second candidate is also an ester, which provides limited retrieval support for considering an oxygenated aliphatic compound.

Main limitation

A specific assignment to propan-2-yl cyclohexanecarboxylate is not supported because the reported library similarity is 0.000.

Evidence

Key evidence

Corrispondenza principale della libreria

propan-2-yl cyclohexanecarboxylate #55760 | match 0.0%

Direzione del materiale

aliphatic organic material with C-O stretching features, possibly an ester- or ether-containing compound The library top hit is propan-2-yl cyclohexanecarboxylate, but the match quality is effectively absent and is not strong enough to support an identification of that specific compound. The measured spectrum is dominated by bands in the fingerprint region, especially 1034-1284 cm-1, which is consistent with C-O stretching in an aliphatic oxygen-containing organic material. However, the present peak list does not include a clear ester carbonyl band near the expected 1700-1750 cm-1 region, so a specific cyclohexanecarboxylate ester assignment is not securely supported. A broader direction of an aliphatic organic material containing C-O bonds is chemically safer on the current evidence.

Support

Evidence supporting the conclusion

Only sample-relevant statements that support the present conclusion are shown here.

The library top hit is propan-2-yl cyclohexanecarboxylate, but the match quality is effectively absent and is not strong enough to support an identification of that specific compound. The measured spectrum is dominated by bands in the fingerprint region, especially 1034-1284 cm-1, which is consistent with C-O stretching in an aliphatic oxygen-containing organic material. However, the present peak list does not include a clear ester carbonyl band near the expected 1700-1750 cm-1 region, so a specific cyclohexanecarboxylate ester assignment is not securely supported. A broader direction of an aliphatic organic material containing C-O bonds is chemically safer on the current evidence.
Multiple strong fingerprint-region peaks between 1034 and 1284 cm-1 support the presence of C-O stretching, which is common in ethers and esters.
The sample lacks broad O-H or obvious N-H information in the provided peak list, so a simple oxygenated aliphatic material remains more consistent than an alcohol-rich or amide-rich interpretation.
The top library candidate is an ester, and the second candidate is also an ester, which provides limited retrieval support for considering an oxygenated aliphatic compound.
The observed bands at 1034, 1057, 1086, 1094, 1117, 1191, 1209, and 1284 cm-1 form a strong fingerprint-region cluster typical of C-O and related skeletal stretching modes in oxygen-containing organic compounds.
Bands at 669, 721, and 744 cm-1 are compatible with ring, chain, or substituted aliphatic deformation modes, but they are not uniquely identifying for the leading library candidate.
The library ranking is weak overall: the top candidate and other high-ranking candidates all have zero reported similarity, and the Top-15 pattern is chemically inconsistent, spanning esters, nitrogen heterocycles, amides, and halogenated solvents.

Limitations

Evidence that limits the conclusion

A specific assignment to propan-2-yl cyclohexanecarboxylate is not supported because the reported library similarity is 0.000.
A narrow ester identification is limited by the absence, in the provided peak list, of a characteristic strong ester carbonyl band near about 1700-1750 cm-1.
The library Top-15 candidates are internally contradictory, including nitrogen heterocycle, amide, and halogenated solvent possibilities, so the retrieval pattern does not consistently reinforce one specific structure class.
The current evidence does not distinguish confidently between an ester and another oxygen-containing aliphatic compound such as an ether-rich material.
Without information from the carbonyl region, C-H stretching region, or sample context, the molecular backbone and substitution pattern remain uncertain.
The low-quality reference library comparison prevents a defensible entity-level conclusion.

Recommendation

Suggested next verification

Reacquire the FTIR spectrum over the full range with attention to the 1800-1500 cm-1 region to check for a characteristic ester carbonyl band.
Inspect the 3000-2800 cm-1 region for aliphatic C-H stretching and the 3500-3200 cm-1 region for any O-H or N-H bands that would redirect the interpretation.
If available, compare against authenticated spectra of the library top hit and a small set of simple aliphatic esters and ethers rather than relying on the present low-match library ranking.
Use a complementary method such as GC-MS or LC-MS if the sample is a small molecule mixture or liquid, since that would quickly test whether a cyclohexanecarboxylate ester is actually present.

Peak analysis

Detected peaks and interpretation

★ = Literature-supported peak assignment.

Index	Characteristic	Wavenumber	Absorbance	Evidence	One-line interpretation	Citation	Confidence
1	·	721	1.00	-	-	-	-
2	·	744	0.29	-	-	-	-
3	·	1034	0.28	-	-	-	-
4	·	669	0.23	-	-	-	-
5	·	1086	0.20	-	-	-	-
6	·	1117	0.20	-	-	-	-
7	·	1094	0.19	-	-	-	-
8	·	1209	0.19	-	-	-	-
9	·	1284	0.17	-	-	-	-
10	·	1191	0.15	-	-	-	-
11	·	1386	0.15	-	-	-	-
12	·	1057	0.13	-	-	-	-
13	·	965	0.11	-	-	-	-

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): [(650, 4000)]

Raw spectrum without baseline correction or other processing:

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2 Mag '25

The above shows the FTIR analysis results of a png file uploaded by a user (IP: 2403::). The original image is displayed below.For such samples in the future, we will provide them in CSV format converted from raw files, making it easier for users to further analyze using our site’s range search technology and other tools. It also allows users to download the data for analysis and share their findings or suggestions.tem.csv

aliphatic organic material with C-O stretching features, possibly an ester- or ether-containing compound

FTIR Spectrum Analysis Report

Similarity-ranked Top-15 library comparison

Reference library candidates

aliphatic organic material with C-O stretching features, possibly an ester- or ether-containing compound

Key evidence

Evidence supporting the conclusion

Evidence that limits the conclusion

Suggested next verification

Detected peaks and interpretation

Sample information and raw spectrum

Commenti e prove di follow-up

Supporto online

aliphatic organic material with C-O stretching features, possibly an ester- or ether-containing compound

Similarity-ranked Top-15 library comparison

Reference library candidates

aliphatic organic material with C-O stretching features, possibly an ester- or ether-containing compound

Key evidence

Evidence supporting the conclusion

Evidence that limits the conclusion

Suggested next verification

Detected peaks and interpretation

Sample information and raw spectrum

Commenti e prove di follow-up

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