C7H5NO4
167.12 g/mol
Pharmaceutical IntermediateWarning
4-Hydroxy-3-nitrobenzaldehyde
CAS3011-34-5EC221-141-6
Category
Pharmaceutical Intermediate
Compound Class
Aromatic
Primary Use
Pharmaceutical Intermediate
4-Hydroxy-3-nitrobenzaldehyde is an organic compound used primarily as a pharmaceutical intermediate. It features both aldehyde and nitro functional groups on a phenolic ring, making it a versatile building block for chemical synthesis.
pharmaceutical intermediatereagent for reductive alkylation of protein amino groups
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
4-(4-Phenylbutoxy)benzoic acid
CAS30131-16-9
pharmaceutical intermediate
ReferenceSame Category
3-chloro-4-morpholino-1,2,5-thiadiazole
CAS30165-96-9
pharmaceutical intermediate
ReferenceSame Category
N-Boc-4-iodopiperidine
CAS301673-14-3
pharmaceutical intermediate
ReferenceSame Category
1-Boc-3-hydroxymethylpiperazine
CAS301673-16-5
pharmaceutical intermediate
Safety Reference
Warning
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
Customs Tariff Classification
The international HS code for 4-Hydroxy-3-nitrobenzaldehyde (CAS 3011-34-5) is 2913.00.
HS code (international, 6-digit)
2913.00
EU CN code (8-digit)
2913 00 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-nitrobenzaldehyde
InChIKey
YTHJCZRFJGXPTL-UHFFFAOYSA-N
SMILES
C1=CC(=C(C=C1C=O)[N+](=O)[O-])O
Synonyms (6)
- 3-nitro-4-hydroxybenzaldehyde
- 4-FORMYL-2-NITROPHENOL
- 4-Hydroxy-3-nitrobenzaldehyde
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