C7H6O3
138.12 g/mol
Pharmaceutical IntermediateWarning
3,4-Dihydroxybenzaldehyde
CAS139-85-5EC205-377-7
Category
Pharmaceutical Intermediate
Compound Class
Aromatic
Primary Use
Pharmaceutical Intermediate
3,4-Dihydroxybenzaldehyde is a dihydroxybenzaldehyde isomer. It is primarily used as an intermediate in pharmaceutical manufacturing.
pharmaceutical 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
ReferenceSame Category
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pharmaceutical intermediate
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ReferenceSame Category
5'-Oxo Amisulpride
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ReferenceSame Category
1-(1-Ethylpyrrolidin-2-yl)-N-methylmethanamine hydrochloride
CAS1391053-31-8
pharmaceutical intermediate
Referencestereoisomer of
3,4-dihydroxybenzaldehyde-d3
CAS180028-20-0
research compound
Safety Reference
Warning
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
Customs Tariff Classification
The international HS code for 3,4-Dihydroxybenzaldehyde (CAS 139-85-5) 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
3,4-dihydroxybenzaldehyde
InChIKey
IBGBGRVKPALMCQ-UHFFFAOYSA-N
SMILES
C1=CC(=C(C=C1C=O)O)O
Synonyms (30)
- D-3480
- 1,2-Dihydroxy-4-formylbenzene
- 3,4-DHBAOP
- 3,4-Dihydroxybenzaldehyde
- 3,4-Dihydroxybenzenecarbonal
- 3,4-Dihydroxybenzyl aldehyde
- 4,5-Dihydroxybenzaldehyde
- 4-Formyl-1,2-benzenediol
- 4-Formyl-1,2-dihydroxybenzene
- Benzaldehyde, 3,4-dihydroxy-
- DIHYDROXYBENZALDEHYDE, 3,4-
- Entacapone Impurity 102
- Erlotinib Impurity 117
- Nc 033
- O HUI WHITE EXTREME CELLIGHT
- PROTOCATECHUIC ALDEHYDE
- Protocatechualdehyde
- Rancinamycin IV
- Tadalafil Impurity 5
- catechaldehyde
- procatechualdehyde
- procatechuic aldehyde
- protocatechaldehyde
- pyrocatechualdehyde
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