C13H8F2O3
250.2 g/mol
APIWarning
Diflunisal
CAS22494-42-4EC245-034-9
Category
API
Compound Class
Organic Acid
Primary Use
Pharmaceutical Raw Material
Diflunisal is an active pharmaceutical ingredient used as a raw material in pharmaceutical manufacturing. It is a nonsteroidal anti-inflammatory compound with a structure containing aromatic rings, carboxylic acid, and fluorine substituents.
Pharmaceutical manufacturing of analgesic compoundsResearch material for anti-inflammatory drug development
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.
Restricted or banned substances
Substances on this list are banned or restricted under the named regulation. This page is a compliance reference — verify your obligations under applicable law.
Relevant lists:California Proposition 65
CAS 22494-42-4
Related Compounds
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pharmaceutical raw material
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Sotorasib
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pharmaceutical raw material
ReferenceSame Category
Clodronate disodium
CAS22560-50-5
pharmaceutical raw material
ReferenceSame Category
Diacetolol
CAS22568-64-5
pharmaceutical raw material
Safety Reference
Warning
H302Harmful if swallowed
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
H361Suspected of damaging fertility or the unborn child
Regulatory Compliance1
- California Proposition 65USRegulation
Customs Tariff Classification
The international HS code for Diflunisal (CAS 22494-42-4) 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
5-(2,4-difluorophenyl)-2-hydroxybenzoic acid
InChIKey
HUPFGZXOMWLGNK-UHFFFAOYSA-N
SMILES
C1=CC(=C(C=C1C2=C(C=C(C=C2)F)F)C(=O)O)O
Synonyms (44)
- 1FL
- Diflunisal (JAN/USP/INN)
- Diflunisal, European Pharmacopoeia (EP)
- Diflunisal, United States Pharmacopeia (USP)
- Diflunisalum [INN-Latin]
- Adomal
- Algobid
- Apo-Diflunisal
- Attrogy
- Citidol
- DIFLUNISAL [MART.]
- Difludol
- Diflunisal (Standard)
- Diflunisal CRS
- Diflunisalum
- Diflusinal
- Dolisal
- Dolobid
- Dolobid (TN)
- Dolobid 500
- Dolobil
- Dolobis
- Dolocid
- Flovacil
- Fluniget
- Fluodonil
- Flustar
- Noaldol
- Novo-Diflunisal
- Nu-Diflunisal
- Reuflos
- Unisal
- diflunisal