Fexofenadine
| Fexofenadine | |
|---|---|
| Salts [] | |
|---|---|
| Fexofenadine hydrochloride | |
| Molecular structure via molpic based on CDK |
| Rotamer [] | |
|---|---|
| Conformer structure via JSmol |
| Physical properties [] | |
|---|---|
| Molecular mass | 501.7 g/mol [1] |
| Appearance | Crystals from methanol-butanone [1] |
| Melting point | 195-197 °C [1] |
| Solubility | Slightly soluble [1] |
| Predicted LogP | 3 [1] |
| Structural Identifiers [] | |
|---|---|
| Molecular formula | C32H39NO4 [1] |
| IUPAC name | 2-[4-[1-hydroxy-4-[4-[hydroxy(diphenyl)methyl]piperidin-1-yl]butyl]phenyl]-2-methylpropanoic acid [1] |
| SMILES | CC(C)(C1=CC=C(C=C1)C(CCCN2CCC(CC2)C(C3=CC=CC=C3)(C4=CC=CC=C4)O)O)C(=O)O [1] |
| InChI | InChI=1S/C32H39NO4/c1-31(2,30(35)36)25-17-15-24(16-18-25)29(34)14-9-21-33-22-19-28(20-23-33)32(37,26-10-5-3-6-11-26)27-12-7-4-8-13-27/h3-8,10-13,15-18,28-29,34,37H,9,14,19-23H2,1-2H3,(H,35,36) [1] |
| InChIKey | RWTNPBWLLIMQHL-UHFFFAOYSA-N [1] |
| Pharmacokinetics[] | |
|---|---|
| Elimination half-life | 14.4 hours |
Fexofenadine (also known as Fexofenadine, 83799-24-0, Carboxyterfenadine, Terfenadine carboxylate, Terfenadine-COOH, Terfenadine acid metabolite, Telfast, MDL 16455, Fexofenadina or 2-(4-{1-Hydroxy-4-[4-(hydroxydiphenylmethyl)piperidin-1-yl]butyl}phenyl)-2-methylpropanoic acid) is a
Chemistry
Salts []
Fexofenadine is typically found in the form of its hydrochloride salt.
Stereochemistry []
Fexofenadine is a racemic mixture of the enantiomers.
Pharmacology
ATC Classification
In the respiratory system (R) fexofenadine actsMetabolism
Subjective effects []
| 0xea / Fexofenadine [] | |
|---|---|
| |
Legal status []
See also []
External links []
References []
National Center for Biotechnology Information. PubChem Compound Summary for CID 3348, Fexofenadine. Accessed March 10, 2026. https://pubchem.ncbi.nlm.nih.gov/compound/3348
U.S. Food and Drug Administration; National Center for Advancing Translational Sciences. Fexofenadine. UNII: E6582LOH6V. Global Substance Registration System. Accessed March 10, 2026. https://gsrs.ncats.nih.gov/ginas/app/beta/substances/E6582LOH6V
Telfast 30mg Film-coated Tablets - Summary of Product Characteristics (SmPC). October 25, 2019. Accessed March 10, 2026. https://www.medicines.org.uk/emc/product/5529/smpc
Almerg 180 mg Film-Coated Tablets - Summary of Product Characteristics (SmPC). Accessed March 10, 2026. https://www.medicines.org.uk/emc/product/10147/smpc
Fexofenadine Hydrochloride 120 mg Film-Coated Tablets - Summary of Product Characteristics (SmPC). March 22, 2021. Accessed March 10, 2026. https://www.medicines.org.uk/emc/product/10144/smpc