C23H16O6
388.4 g/mol
Pharmaceutical IntermediateWarning
PAMOIC ACID
CAS130-85-8EC204-998-0
Category
Pharmaceutical Intermediate
Compound Class
Organic Acid
Primary Use
Pharmaceutical Intermediate
Pamoic acid, also known as embonic acid, is a derivative of 2-naphthoic acid. It is produced by reacting 3-hydroxy-2-naphthoic acid with formaldehyde and is primarily used as a pharmaceutical intermediate and reference standard.
pharmaceutical intermediatereference standard
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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Safety Reference
Warning
H302Harmful if swallowed
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
H412Harmful to aquatic life with long lasting effects
Customs Tariff Classification
The international HS code for PAMOIC ACID (CAS 130-85-8) is 2918.29.
HS code (international, 6-digit)
2918.29
EU CN code (8-digit)
2918 29 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-[(3-carboxy-2-hydroxynaphthalen-1-yl)methyl]-3-hydroxynaphthalene-2-carboxylic acid
InChIKey
WLJNZVDCPSBLRP-UHFFFAOYSA-N
SMILES
C1=CC=C2C(=C1)C=C(C(=C2CC3=C(C(=CC4=CC=CC=C43)C(=O)O)O)O)C(=O)O
Synonyms (29)
- Pamoic acid, United States Pharmacopeia (USP)
- Embonic acid
- Embonic acid, Pamoic acid
- PAMOIC ACID
- Pamoic acid (Standard)
- Pamoic acid, >=97.0% (T)
- Pamosaeure
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