Biological Activity
Peripheral histamine H1 receptor antagonist (Ki = 35 nM); devoid of central effects. Orally active antiallergic agent.
Compound Libraries
Loratidine is also offered as part of the Tocriscreen Plus and Tocriscreen Library of FDA-Approved Compounds. Find out more about compound libraries available from Tocris.
Technical Data
| M. Wt | 382.88 |
| Formula | C22H23ClN2O2 |
| Storage | Store at RT |
| Purity | ≥99% (HPLC) |
| CAS Number | 79794-75-5 |
| PubChem ID | 3957 |
| InChI Key | JCCNYMKQOSZNPW-UHFFFAOYSA-N |
| Smiles | CCOC(=O)N1CCC(CC1)=C1/C2=NC=CC=C2CCC2=C1C=CC(Cl)=C2 |
The technical data provided above is for guidance only. For batch specific data refer to the Certificate of Analysis.
All Tocris products are intended for laboratory research use only.
Solubility Data
| Solvent | Max Conc. mg/mL | Max Conc. mM | |
|---|---|---|---|
| Solubility | |||
| DMSO | 9.57 | 25 | |
| ethanol | 38.29 | 100 |
Preparing Stock Solutions
The following data is based on the product molecular weight 382.88. Batch specific molecular weights may vary from batch to batch due to solvent of hydration, which will affect the solvent volumes required to prepare stock solutions.
| Concentration / Solvent Volume / Mass | 1 mg | 5 mg | 10 mg |
|---|---|---|---|
| 1 mM | 2.61 mL | 13.06 mL | 26.12 mL |
| 5 mM | 0.52 mL | 2.61 mL | 5.22 mL |
| 10 mM | 0.26 mL | 1.31 mL | 2.61 mL |
| 50 mM | 0.05 mL | 0.26 mL | 0.52 mL |
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Product Datasheets
References
References are publications that support the products' biological activity.
Ahn and Barnett (1986) Selective displacement of [3H]mepyramine from peripheral vs. central nervous system receptors by loratadine, a non-sedating antihistamine. Eur.J.Pharmacol. 127 153 PMID: 2875889
Barnett et al (1984) Evaluation of the CNS properties of SCH 29851, a potential non-sedating antihistamine. Agents Actions 14 590 PMID: 6236679
Kreutner et al (1987) Antiallergic activity of loratidine, a non-sedating antihistamine. Allergy 42 57 PMID: 2436504
Keywords: Loratidine, supplier, Peripheral, H1, antagonists, anti-allergic, agent, Receptors, Histamine, histaminergic, SCH29851, SCH, 29851, Histamine, H1, Receptors, Histamine, H1, Receptors, Tocris Bioscience
