C7H7NO3
153.14 g/mol
Pharmaceutical IntermediateWarning
3-Amino-4-hydroxybenzoic acid
CAS1571-72-8EC216-390-2
Category
Pharmaceutical Intermediate
Compound Class
Organic Acid
Primary Use
Pharmaceutical Intermediate
3-Amino-4-hydroxybenzoic acid is a monohydroxybenzoic acid that consists of 4-hydroxybenzoic acid with an additional amino substituent at the 3-position. It functions as a conjugate acid of 3-amino-4-hydroxybenzoate and is used as a pharmaceutical or research intermediate.
pharmaceutical intermediateresearch 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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CAS157322-47-9
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ReferenceSame Category
Eribulin mesylate intermediate
CAS157322-83-3
pharmaceutical intermediate
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 3-Amino-4-hydroxybenzoic acid (CAS 1571-72-8) is 2922.50.
HS code (international, 6-digit)
2922.50
EU CN code (8-digit)
2922 50 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-amino-4-hydroxybenzoic acid
InChIKey
MRBKRZAPGUCWOS-UHFFFAOYSA-N
SMILES
C1=CC(=C(C=C1C(=O)O)N)O
Synonyms (8)
- A1JOG
- 3,4-AHBA
- 3-Amino-4-hydroxybenzoic acid
- 4-hydroxy-3-aminobenzoic acid
- cheetan
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