Tolfenamic acid
An aminobenzoic acid that is anthranilic acid in which one of the hydrogens attached to the nitrogen is replaced by a 3-chloro-2-methylphenyl group. Tolfenamic acid is used specifically for relieving the pain of migraine. It also shows anticancer activity. — ChEBI
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Identity & molecular properties
Source-linked values| CAS number | 13710-19-5 | ChEBI ↗ |
| Molecular formula | C14H12ClNO2 | ChEBI ↗ |
| Molar mass | 261.708 g/mol | ChEBI ↗ |
| Monoisotopic mass | 261.05566 Da | ChEBI ↗ |
| Formal charge | 0 | ChEBI ↗ |
| ChEBI identifier | CHEBI:32243 | ChEBI ↗ |
Cross-source molecular data
PubChem| Molar mass | 261.70 g/mol | PubChem ↗ |
| Exact mass | 261.0556563 Da | PubChem ↗ |
| Computed XLogP | 5.2 | PubChem ↗ |
| Topological polar surface area (Ų) | 49.3 | PubChem ↗ |
| H-bond donors | 2 | PubChem ↗ |
| H-bond acceptors | 3 | 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 identifiertolfenamic acid2-[(3-chloro-2-methylphenyl)amino]benzoic acidYEZNLOUZAIOMLT-UHFFFAOYSA-NCc1c(Cl)cccc1Nc1ccccc1C(=O)OInChI=1S/C14H12ClNO2/c1-9-11(15)6-4-8-12(9)16-13-7-3-2-5-10(13)14(17)18/h2-8,16H,1H3,(H,17,18)Names & 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 261.708 g/mol from ChEBI. Assumes the substance described by this record; no purity or concentration correction is applied.
Elemental composition
Theoretical mass fractionsCClONHCalculated 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.