Flunoxaprofen
A monocarboxylic acid that is propionic acid substituted at position 2 by a 2-(4-chlorophenyl)-1,3-benzoxazol-5-yl group (the S-enantiomer). Although it was shown to be effective in treatment of rheumatoid arthritis and osteoarthritis, the clinical use of flunoxaprofen was discontinued due to possible hepatotoxic side-effects. — ChEBI
Safety documents & references
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Identity & molecular properties
Source-linked values| CAS number | 66934-18-7 | ChEBI ↗ |
| Molecular formula | C16H12FNO3 | ChEBI ↗ |
| Molar mass | 285.274 g/mol | ChEBI ↗ |
| Monoisotopic mass | 285.08012 Da | ChEBI ↗ |
| Formal charge | 0 | ChEBI ↗ |
| ChEBI identifier | CHEBI:76154 | ChEBI ↗ |
Cross-source molecular data
PubChem| Molar mass | 285.27 g/mol | PubChem ↗ |
| Exact mass | 285.08012141 Da | PubChem ↗ |
| Computed XLogP | 3.6 | PubChem ↗ |
| Topological polar surface area (Ų) | 63.3 | PubChem ↗ |
| H-bond donors | 1 | PubChem ↗ |
| H-bond acceptors | 5 | PubChem ↗ |
| Rotatable bonds | 3 | PubChem ↗ |
PubChem computed values are shown separately from the ChEBI record. An exact InChIKey match was used to connect the records. Molecular descriptors do not describe a supplied product’s purity, particle size or performance.
Names & structural identifiers
Copy any identifierflunoxaprofen(2S)-2-[2-(4-fluorophenyl)-1,3-benzoxazol-5-yl]propanoic acidARPYQKTVRGFPIS-VIFPVBQESA-NC[C@H](C(=O)O)c1ccc2oc(-c3ccc(F)cc3)nc2c1InChI=1S/C16H12FNO3/c1-9(16(19)20)11-4-7-14-13(8-11)18-15(21-14)10-2-5-12(17)6-3-10/h2-9H,1H3,(H,19,20)/t9-/m0/s1Names & synonyms
Names are supplied by ChEBI. Trade names and related synonyms may describe a broader product context.
Classification & relationships
ChEBI ontologyRoles recorded in ChEBI
Database role annotations describe reported biological or chemical roles; they are not product approvals or recommendations for use.
Mass ↔ amount of substance
Calculated from sourced massUses 285.274 g/mol from ChEBI. Assumes the substance described by this record; no purity or concentration correction is applied.
Elemental composition
Theoretical mass fractionsCOFNHCalculated theoretical mass fractions from the reported formula and PubChem periodic-table atomic masses. These are not assay or purity results.
Research & patent references
Selected source associationsSources & record history
Checked 27 Sep 2026Release 255, 9 September 2026. ChEBI three-star (manually annotated) source entry. View original record ↗ · CC BY 4.0
PubCAS formats source data, connects references and computes explicitly labelled conversions. CAS cross-references are supplied by ChEBI; they do not constitute CAS verification or endorsement.