Atiprosin (AY-28,228) is an antihypertensive agent which acts as a selective α1-adrenergic receptor antagonist. It also possesses some antihistamine activity, though it is some 15-fold weaker in this regard than as an alpha blocker. It was never marketed.

CAS：89303-63-9
中文别名：
英文别名：atiprosin;
分子式：C20H29N3
分子量：311.464
精确质量：311.236
Psa：11.41
Logp：3.6848

密度：1.15g/cm3
沸点：461.5ºC at 760 mmHg
闪点：232.9ºC
折射率：1.628