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Loratadine (CAS 79794-75-5) LS-H120

H1 receptor agonist
LS-H120-5 / 5 mg / $185
LS-H120-10 / 10 mg / $205
LS-H120-25 / 25 mg / $235
LS-H120-50 / 50 mg / $275
USA Shipment Only
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Description: Loratadine is a non-sedating antihistamine that acts as a selective inverse agonist of peripheral histamine H1 receptors (Ki = 35 nM). It has been shown to inhibit the release of leukotriene C4 (IC50 = 8 µM) and histamine (IC50 = 11 µM) from rodent mast cells and to inhibit allergic bronchospasm in guinea pigs with an ED50 value of 0.40 mg/kg. H120_ChemicalStructureImage.png
4-(8-chloro-5,6-dihydro-11H-benzo[5,6]cyclohepta[1,2-b]pyridin-11-ylidene)-ethyl ester-1-piperidinecarboxylic acid
Claritin®
SCH29851
biochemical, chemical, agonist
LS-H120
79794-75-5
C22H23ClN2O2
≥98%
A crystalline solid
 
ClC(C=C1)=CC(CCC2=C/3N=CC=C2)=C1C3=C4CCN(C(OCC)=O)CC/4
InChI=1S/C22H23ClN2O2/c1-2-27-22(26)25-12-9-15(10-13-25)20-19-8-7-18(23)14-17(19)6-5-16-4-3-11-24-21(16)20/h3-4,7-8,11,14H,2,5-6,9-10,12-13H2,1H3
JCCNYMKQOSZNPW-UHFFFAOYSA-N
Shipped Ambient, store at -20°C, ≥ 2 years shelf life.
This product is for research use only. Not for administration to humans, or for human or veterinary diagnostic or therapeutic use.
Data Sheet DataSheet    SDS SDS
Related Products: HRH1 / Histamine H1 Receptor related products

Usage Information

Loratadine is supplied as a crystalline solid. A stock solution may be made by dissolving the loratadine in the solvent of choice. Loratadine is soluble in organic solvents such as ethanol, DMSO, and dimethyl formamide (DMF), which should be purged with an inert gas. The solubility of loratadine in ethanol and DMF is approximately 30 mg/ml and approximately 25 mg/ml in DMSO. Loratadine is sparingly soluble in aqueous buffers. For maximum solubility in aqueous buffers, loratadine should first be dissolved in ethanol and then diluted with the aqueous buffer of choice. Loratadine has a solubility of approximately 0.25 mg/ml in a 1:3 solution of ethanol:PBS (pH 7.2) using this method. We do not recommend storing the aqueous solution for more than one day.

References:
  1. Ahn, H.S. and Barnett, A. Selective displacement of [3H]mepyramine from peripheral vs. central nervous system receptors by loratadine, a non-sedating antihistamine. Eur. J. Pharmacol. 127(1-2), 153-155 (1986).
  2. Kay, G.G. and Harris, A.G. Loratadine: A non-sedating antihistamine. Review of its effects on cognition, psychomotor performance, mood and sedation. Clin. Exp. Allergy 29, 147-150 (1999).
  3. Barnett, A., Iorio, L.C., Kreutner, W., et al. Evaluation of the CNS properties of SCH 29851, a potential non-sedating antihistamine. Agents Actions 43(3-4), 149-156 (1994).
  4. Kreutner, W., Chapman, R.W., Gulbenkian, A., et al. Antiallergic activity of loratadine, a non-sedating antihistamine. Allergy 42(1), 57-63 (1987).

 


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