Multiple choice A 6-membered ether-containing ringed organic compound is Thromboxane Prostaglandin D2 Misoprostol Platelet-activating factor Reveal answer Fill a bubble to check yourself A Correct answer Explanation Thromboxane is a member of the family of lipids known as eicosanoids. The two major thromboxanes are thromboxane A2 and thromboxane B2. The distinguishing feature of thromboxanes is a 6-membered ether-containing ring.