C8H7NO4
181.15 g/mol
Pharmaceutical IntermediateWarning
4-Aminophthalic acid
CAS5434-21-9EC226-596-4
Category
Pharmaceutical Intermediate
Compound Class
Organic Acid
Primary Use
Pharmaceutical Intermediate
4-Aminophthalic acid is an aromatic compound containing an amino group and two carboxylic acid groups. 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
4-Hydroxy-3-nitropyridine
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pharmaceutical intermediate
ReferenceSame Category
2-amino-2-phenylbutyric acid
CAS5438-07-3
pharmaceutical intermediate
ReferenceSame Category
2-nitro-4-(propylthio)aniline
CAS54393-89-4
pharmaceutical intermediate
ReferenceSame Category
2-methyl-3-(trifluoromethyl)aniline
CAS54396-44-0
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-Aminophthalic acid (CAS 5434-21-9) is 2922.49.
HS code (international, 6-digit)
2922.49
EU CN code (8-digit)
2922 49 85
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-aminophthalic acid
InChIKey
OXSANYRLJHSQEP-UHFFFAOYSA-N
SMILES
C1=CC(=C(C=C1N)C(=O)O)C(=O)O
Synonyms (7)
- 4-Aminophthalate
- 4-Aminophthalic acid
Sourcing 4-Aminophthalic acid?
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