Prostaglandin D2

**Semantic type:** Organic Chemical

**Definition:** An eicosanoid that is generated by the action of prostaglandin D2 synthase on prostaglandin H2. Prostaglandin D2 mediates vasodilation, smooth muscle contraction and circadian rhythms. This prostanoid may also play a role in male pattern baldness.

**Synonyms:** - (5Z,13E)-(15S)-9alpha,15-Dihydroxy-11-Oxoprosta-5,13-Dienoate - (5Z,13E,15S)-9alpha,15-Dihydroxy-11-Oxoprosta-5,13-Dien-1-Oic Acid - 11-Dehydroprostaglandin F2-Alpha - PGD2 - PROSTAGLANDIN D2 - Prosta-5,13-Dien-1-Oic Acid, 9,15-Dihydroxy-11-Oxo-, (5Z,9-Alpha,13E,15S)-