Terfenadine
Tocris Bioscience, part of Bio-Techne | Catalog # 3948
H1 antagonist. Also KV11.1 (hERG) and Kir6 (KATP) channel blocker
Key Product Details
Description
H1 antagonist. Also KV11.1 (hERG) and Kir6 (KATP) channel blocker
Product Description
Terfenadine is a histamine H1 receptor antagonist. Also blocks KV11.1 (hERG) and Kir6 (KATP) channels (IC50 values are 204 nM and 1.2 μM respectively). Inhibits the delayed rectifier K+ current (IKr) in guinea pig ventricular myocytes (IC50 = 50 nM). Activity prolongs QT and induces Torsades de pointes (TdP); cardiotoxic in vivo.Product Specifications
Molecular Weight
471.67
Formula
C32H41NO2
Storage
Store at +4°C
Purity
≥98% (HPLC)
Chemical Name
α-[4-(1,1-Dimethylethyl)phenyl]-4-(hydroxydiphenylmethyl)-1-piperidinebutanol
CAS Number
50679-08-8
PubChem ID
5405
InChI Key
GUGOEEXESWIERI-UHFFFAOYSA-N
SMILES
OC(C3=CC=CC=C3)(C4=CC=CC=C4)C1CCN(CCCC(O)C2=CC=C(C(C)(C)C)C=C2)CC1
The technical data provided above is for guidance only. For batch specific data refer to the Certificate of Analysis.
Solubility
| Solvent | Max Conc. mg/mL | Max Conc. mM | |
|---|---|---|---|
| Solubility | |||
| DMSO | 47.17 | 100 | |
| Ethanol | 11.79 | 25 |
Preparing Stock Solutions
for Terfenadine
The following data is based on the product molecular weight 471.67
Batch specific molecular weights may vary from batch to batch due to the degree of hydration, which all affect the solvent volumes required to prepare stock solutions.
| Concentration / Solvent Volume / Mass | 1 mg | 5 mg | 10 mg |
|---|---|---|---|
| 1 mM | 2.12 mL | 10.60 mL | 21.20 mL |
| 5 mM | 0.42 mL | 2.12 mL | 4.24 mL |
| 10 mM | 0.21 mL | 1.06 mL | 2.12 mL |
| 50 mM | 0.04 mL | 0.21 mL | 0.42 mL |
Calculators
Molarity Calculator
Dilution Calculator
Reconstitution Calculator
Background References
References are publications that support the biological activity of the product.
- Zunkler Mechanism of terfenadine block of ATP-sensitive K+ channels. Br.J.Pharmacol. 2000 PMID: 10928959
- Stork State dependent dissociation of HERG channel inhibitors. Br.J.Pharmacol. 2007 PMID: 17592502
- Crumb Loratadine blockade of K+ channels in human heart: comparison with terfenadine under physiological conditions. J.Pharmacol.Exp.Ther. 2000 PMID: 10604956
Product Specific Notices for Terfenadine
For research use only
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