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Submit ReviewLoratidine
Description: Peripheral H1 antagonist; antiallergic agent
Alternative Names: SCH 29851
Chemical Name: 4-(8-Chloro-5,6-dihydro-11H-benzo[5,6]cyclohepta[1,2-b]pyridin-11-ylidene)-1-piperidinecarboxylic acid ethyl ester
Purity: ≥99% (HPLC)
Biological Activity for Loratidine
Loratidine is a peripheral histamine H1 receptor antagonist (Ki = 35 nM); devoid of central effects. Orally active antiallergic agent.
Compound Libraries for Loratidine
Loratidine is also offered as part of the Tocriscreen 2.0 Max and Tocriscreen FDA-Approved Drugs. Find out more about compound libraries available from Tocris.
Technical Data for Loratidine
| 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)N1CC\C(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.
Tocris products are intended for laboratory research use only, unless stated otherwise.
Solubility Data for Loratidine
| Solvent | Max Conc. mg/mL | Max Conc. mM | |
|---|---|---|---|
| Solubility | |||
| DMSO | 9.57 | 25 | |
| ethanol | 38.29 | 100 |
Preparing Stock Solutions for Loratidine
The following data is based on the product molecular weight 382.88. Batch specific molecular weights may vary from batch to batch due to the degree 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 for Loratidine
References for Loratidine
References are publications that support the biological activity of the product.
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
If you know of a relevant reference for Loratidine, please let us know.
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Keywords: Loratidine, Loratidine supplier, Peripheral, H1, antagonists, anti-allergic, agent, Receptors, Histamine, histaminergic, SCH29851, SCH, 29851, 1944, Tocris Bioscience
Citations for Loratidine
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Reviews for Loratidine
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Literature in this Area
Tocris offers the following scientific literature in this area to showcase our products. We invite you to request* your copy today!
*Please note that Tocris will only send literature to established scientific business / institute addresses.
Histamine Receptors Scientific Review
Written by Iwan de Esch and Rob Leurs, this review provides a synopsis of the different histamine receptor subtypes and the ligands that act upon them; compounds available from Tocris are listed.