Biologically Active Small Molecules, Cayman Chemical, 147-24-0, Bottle, Glass, Clear

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  • A first generation antihistamine which is a potent antagonist of the human H1 receptor (Ki = 11.7 nM); readily crosses the blood-brain barrier and produces diverse cognitive and psychomotor effects; also antagonizes muscarinic cholinergic receptors (Ki = 100 to 260 nM for M1 through M5).