Ethylvanillin

CAS Number121-32-4
Molecular FormulaC9H10O3
Molecular Weight166.17
InChI KeyCBOQJANXLMLOSS-UHFFFAOYSA-N
LogP1.6
Synonyms
  • 3-Ethoxy-4-hydroxybenzaldehyde
  • ETHYL VANILLIN
  • Ethylvanillin
  • 121-32-4
  • Bourbonal
  • Ethylprotal
  • Vanillal
  • Ethavan
  • Ethovan
  • Vanirom
  • Vanilal
  • Quantrovanil
  • 4-Hydroxy-3-ethoxybenzaldehyde
  • Rhodiarome
  • Benzaldehyde, 3-ethoxy-4-hydroxy-
  • Ethyl protal
  • Protocatechuic aldehyde ethyl ether
  • Vanillin, ethyl-
  • Vanirome
  • 2-Ethoxy-4-formylphenol
  • Ethylprotocatechuic aldehyde
  • 3-Ethoxyprotocatechualdehyde
  • FEMA No. 2464
  • Arovanillon
  • Ethyl protocatechuic aldehyde
  • NSC 1803
  • DTXSID5021968
  • Vanillin,ethyl
  • NSC-1803
  • YC9ST449YJ
  • NSC-67240
  • J2.006K
  • DTXCID901968
  • CHEBI:48408
  • RefChem:139073
  • 204-464-7
  • MFCD00006944
  • Vanbeenol
  • ethyl-vanillin
  • Ethylprotocatechualdehyde-3-ethyl ether
  • 3-ETHOXY-4-HYDROXY-BENZALDEHYDE
  • 3-ethoxy-4-hydroxy benzaldehyde
  • Ethyl vanillin (NF)
  • Ethyl vanillin [NF]
  • Protocatechuic aldehyde 3-ethyl ether
  • NCGC00091583-02
  • WLN: VHR DQ CO2
  • Quantrovanil, Vanillal
  • CAS-121-32-4
  • CCRIS 1346
  • HSDB 945
  • EINECS 204-464-7
  • UNII-YC9ST449YJ
  • BRN 1073761
  • ehtylvanillin
  • Aethylvanillin
  • AI3-00786
  • Ethyl vanillin, USAN?
  • Ethylvanillin (Standard)
  • Ethyl protocatechualdehyde
  • EC 204-464-7
  • ETHYL VANILLIN [II]
  • ETHYL VANILLIN [MI]
  • SCHEMBL30247
  • 3ethoxy-4-hydroxybenzaldehyde
  • ETHYL VANILLIN [FCC]
  • MLS002454403
  • BIDD:ER0329
  • ETHYL VANILLIN [FHFI]
  • ETHYL VANILLIN [HSDB]
  • 3-ethoxyl-4-hydroxybenzaldhyde
  • 5-ethoxy-4-hydroxybenzaldehyde
  • VANILLIN,ETHYL [VANDF]
  • CHEMBL508676
  • orb1310561
  • orb3025563
  • SCHEMBL6899032
  • ETHYL VANILLIN [MART.]
  • Ethyl vanillin (Rhodiarome(R))
  • ETHYL VANILLIN [USP-RS]
  • ETHYL VANILLIN [WHO-DD]
  • SCHEMBL29351334
  • FEMA 2464
  • HY-B0940R
  • MSK3355
  • NSC1803
  • GLXC-10438
  • HMS2267D23
  • HMS5083L13
  • Ethyl vanillin, analytical standard
  • BB_NC-02247
  • HY-B0940
  • NSC67240
  • Tox21_113535
  • Tox21_202125
  • Tox21_302903
  • BBL023011
  • EBC-47204
  • MSK3355-100M
  • s4568
  • SBB008268
  • STK353630
  • 3-(Ethoxy-d5)-4-hydroxybenzaldehyde
  • Ethyl vanillin, >=98%, FCC, FG
  • AKOS000119395
  • MSK3355-1000M
  • CCG-213720
  • CS-4409
  • FE34406
  • PS-4030
  • NCGC00091583-01
  • NCGC00091583-03
  • NCGC00091583-04
  • NCGC00256500-01
  • NCGC00259674-01
  • AC-10881
  • Ethyl proto-catechualdehyde-3-ethyl ether
  • NCI60_001511
  • SMR001252229
  • SY011364
  • DB-061895
  • E0050
  • NS00008588
  • ST45162590
  • EN300-18278
  • D01086
  • D70878
  • Ethyl vanillin Solution in Methanol, 100ug/mL
  • AB00949623_05
  • Ethyl vanillin Solution in Methanol, 1000ug/mL
  • F222092
  • Q416958
  • SR-01000865052
  • SR-01000865052-2
  • 3-Ethoxy-4-hydroxybenzaldehyde, ReagentPlus(R), 99%
  • BRD-K82104468-001-05-0
  • Z57772443
  • F2190-0622
  • 3-Ethoxy-4-hydroxybenzaldehyde, Vetec(TM) reagent grade, 99%
  • Ethyl vanillin, United States Pharmacopeia (USP) Reference Standard
  • Ethyl vanillin, Pharmaceutical Secondary Standard; Certified Reference Material
  • InChI=1/C9H10O3/c1-2-12-9-5-7(6-10)3-4-8(9)11/h3-6,11H,2H2,1H

Applications:

Uv-Vis Spectrum of Ethylvanillin

February 23, 2026

Access the UV-Vis Spectrum SIELC Library

If you are looking for optimized HPLC method to analyze Ethylvanillin check our HPLC Applications library

For optimal results in HPLC analysis, it is recommended to measure absorbance at a wavelength that matches the absorption maximum of the compound(s) being analyzed. The UV spectrum shown can assist in selecting an appropriate wavelength for your analysis. Please note that certain mobile phases and buffers may block wavelengths below 230 nm, rendering absorbance measurement at these wavelengths ineffective. If detection below 230 nm is required, it is recommended to use acetonitrile and water as low UV-transparent mobile phases, with phosphoric acid and its salts, sulfuric acid, and TFA as buffers.
For some compounds, the UV-Vis Spectrum is affected by the pH of the mobile phase. The spectra presented here are measured with an acidic mobile phase that has a pH of 3 or lower.

Application Analytes:
Ethylvanillin
SIELC Technologies usually develops more than one method for each compound. Therefore, this particular method may not be the best available method from our portfolio for your specific application. Before you decide to implement this method in your research, please send us an email to research@sielc.com so we can ensure you get optimal results for your compound/s of interest.