C9H10O3
166.17 g/mol
Flavor & FragranceWarning
3-Ethoxy-4-hydroxybenzaldehyde
CAS121-32-4EC204-464-7
Category
Flavor & Fragrance
Compound Class
Aromatic
Primary Use
flavor and fragrance ingredient
This compound is a homologue of vanillin, featuring a benzene ring with hydroxyl, ethoxy, and formyl substituents. It is primarily used as a flavor and fragrance ingredient.
flavor ingredientfragrance ingredient
Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.
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Related Compounds
ReferenceSame Category
Vanillin
CAS121-33-5
Flavoring and fragrance agent
ReferenceSame Category
Vanillic acid
CAS121-34-6
Flavoring agent and flavor intermediate
ReferenceSame Category
Methyl anisate
CAS121-98-2
flavoring agent
ReferenceSame Category
1-(2,3,8,8-tetramethyldecahydronaphthalen-2-yl)ethanol
CAS1214625-91-8
synthetic fragrance ingredient
Safety Reference
Warning
H319Causes serious eye irritation
H302Harmful if swallowed
H315Causes skin irritation
H335May cause respiratory irritation
H402Harmful to aquatic life
H412Harmful to aquatic life with long lasting effects
Customs Tariff Classification
The international HS code for 3-Ethoxy-4-hydroxybenzaldehyde (CAS 121-32-4) is 2912.42.
HS code (international, 6-digit)
2912.42
EU CN code (8-digit)
2912 42 00
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
Identifiers
IUPAC Name
3-ethoxy-4-hydroxybenzaldehyde
InChIKey
CBOQJANXLMLOSS-UHFFFAOYSA-N
SMILES
CCOC1=C(C=CC(=C1)C=O)O
Synonyms (41)
- Ethyl vanillin, USAN?
- Ethyl vanillin, United States Pharmacopeia (USP)
- 2-Ethoxy-4-formylphenol
- 3-Ethoxyprotocatechualdehyde
- Aethylvanillin
- Arovanillon
- Bourbonal
- ETHYL VANILLIN
- ETHYL VANILLIN [MART.]
- Ethavan
- Ethovan
- Ethyl protocatechualdehyde
- Ethyl vanillin (NF)
- Ethylprotal
- Ethylprotocatechuic aldehyde
- Ethylvanillin (Standard)
- FEMA 2464
- J2.006K
- Quantrovanil
- Quantrovanil, Vanillal
- Rhodiarome
- Vanbeenol
- Vanilal
- Vanillal
- Vanillin, ethyl-
- Vanirom
- Vanirome
- ehtylvanillin
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