YN320361 Emedastine 87233-61-2

Emedastine is a potent, high affinity histamine H1-receptor-selective antagonist with Ki of 1.3 ±0.1 nM for H1-receptors while considerably weaker at H2- (K1 = 49,067 ± 11,113 nM) and H3-receptors (Ki = 12,430 ± 1,282 nM).

YN321522 Betahistine 5638-76-6

Betahistine Dihydrochloride is a histamine H3 receptors inhibitor used as an antivertigo drug.

YN321523 Betahistine dihydrochloride 5579-84-0

Betahistine is a histamine H3 receptor inhibitor with IC50 of 1.9 μM.

YN320960 Ciproxifan maleate 184025-19-2

Ciproxifan is a highly potent and selective histamin H3-receptor antagonist with IC50 of 9.2 nM, with low apparent affinity at other receptor subtypes.