C8H8O4
168.15 g/mol
Flavor & FragranceWarning
Vanillic acid
CAS121-34-6EC204-466-8
Category
Flavor & Fragrance
Compound Class
Organic Acid
Primary Use
Flavoring agent and flavor intermediate
Vanillic acid is a dihydroxybenzoic acid derivative used as a flavoring agent. It is an oxidized form of vanillin and also serves as an intermediate in the production of vanillin from ferulic acid.
Flavoring agentFlavor intermediate
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
SimilarStructure SimilarSimilarity 0.72
Apocynin
CAS498-02-2
pharmaceutical raw material
SimilarStructure SimilarSimilarity 0.72
Isovanillic acid
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pharmaceutical 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
ReferenceSame Category
P-methylacetophenone
CAS122-00-9
flavoring agent or adjuvant
ReferenceSame Category
Cuminaldehyde
CAS122-03-2
Flavoring agent and perfume ingredient
Safety Reference
Warning
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
Customs Tariff Classification
The international HS code for Vanillic acid (CAS 121-34-6) is 2918.99.
HS code (international, 6-digit)
2918.99
EU CN code (8-digit)
2918 99 90
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
4-hydroxy-3-methoxybenzoic acid
InChIKey
WKOLLVMJNQIZCI-UHFFFAOYSA-N
SMILES
COC1=C(C=CC(=C1)C(=O)O)O
Synonyms (31)
- VNL
- 2-METHOXY-4-CARBOXYPHENOL
- 3-Methoxy-4-hydroxybenzoate
- 4-hydroxy-3-methoxy-Benzoate
- 4-hydroxy-m-Anisate
- 4-hydroxy-m-Anisic acid
- Acid, Vanillic
- Acide vanillique
- DROXIDOPA METABOLITE (VA)
- VA (VAN)
- Vanilic acid
- Vanillic acid
- Vanillic acid (M2)
- Vanillic acid (Standard)
- Vanillinsaure
- m-Anisic acid, 4-hydroxy-
- p-Vanillate
- p-Vanillic acid
- vanillinic acid
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