C7H5NO5
183.12 g/mol
Pharmaceutical IntermediateDanger
3,4-Dihydroxy-5-nitrobenzaldehyde
CAS116313-85-0EC441-810-8
Category
Pharmaceutical Intermediate
Compound Class
Aromatic
Primary Use
Pharmaceutical Intermediate
3,4-Dihydroxy-5-nitrobenzaldehyde is a multifunctional aromatic compound featuring aldehyde, hydroxyl, and nitro groups, used as a pharmaceutical intermediate. Its structure makes it a versatile building block for synthesizing complex organic molecules in drug development.
Pharmaceutical intermediate for drug synthesisStarting material for the synthesis of phenethylaminesBuilding block for coenzyme Q and catechol-O-methyltransferase inhibitors
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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4-[5-(3,5-dichloro-phenyl)-5-trifluoromethyl-4,5-dihydro-isoxazol-3-yl]-2-methyl-benzoic acid tert-butyl ester
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Safety Reference
Danger
H302Harmful if swallowed
H317May cause an allergic skin reaction
H318Causes serious eye damage
H315Causes skin irritation
H335May cause respiratory irritation
Customs Tariff Classification
The international HS code for 3,4-Dihydroxy-5-nitrobenzaldehyde (CAS 116313-85-0) 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
3,4-dihydroxy-5-nitrobenzaldehyde
InChIKey
BBFJODMCHICIAA-UHFFFAOYSA-N
SMILES
C1=C(C=C(C(=C1[N+](=O)[O-])O)O)C=O
Synonyms (13)
- 3,4-Dihydroxy-5-nitrobenzaldehyde; Entacapone Imp. C (EP); Entacapone Impurity C
- Entacapone EP Impurity C
- Entacapone EP Impurity C(Mixtures of tautomers)
- 5-Carboxo-3-nitrocatechol
- DHNB compound
- ENTACAPONE IMPURITY C
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