C9H10O4
182.17 g/mol
Flavor & FragranceWarning
4-Hydroxy-3,5-dimethoxybenzaldehyde
CAS134-96-3EC205-167-5
Category
Flavor & Fragrance
Compound Class
Aromatic
Primary Use
Flavoring agent or adjuvant
4-Hydroxy-3,5-dimethoxybenzaldehyde, commonly known as syringaldehyde, is an organic compound that occurs naturally in trace amounts. It is used as a flavoring agent or adjuvant and also serves as a chemical signal in the communication systems of certain insect species.
Flavoring agent or adjuvantInsect chemical communication signal
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
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flavoring agent or adjuvant
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Perfume ingredient and solvent
Safety Reference
Warning
H302Harmful if swallowed
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
Customs Tariff Classification
The international HS code for 4-Hydroxy-3,5-dimethoxybenzaldehyde (CAS 134-96-3) is 2912.49.
HS code (international, 6-digit)
2912.49
EU CN code (8-digit)
2912 49 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
4-hydroxy-3,5-dimethoxybenzaldehyde
InChIKey
KCDXJAYRVLXPFO-UHFFFAOYSA-N
SMILES
COC1=CC(=CC(=C1O)OC)C=O
Synonyms (25)
- IJV
- SYAL
- 2,6-DIMETHOXY-4-FORMYLPHENOL
- 4-FORMYL-2,6-DIMETHOXYPHENOL
- 4-H-3,5-DMBA
- Cedar aldehyde
- Springaldehyde
- Syringaldehyde
- Syringaldehyde (Standard)
- Syringealdehyde
- Syringic aldehyde
- Syringylaldehyde
- not relevant
- syringaldehye
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