5-trans Latanoprost free acid is an active metabolite of Latanoprost, a prostaglandin F2α analog used in ophthalmology. It is primarily employed in research and development for treating ocular conditions, such as open-angle glaucoma and ocular hypertension, by facilitating studies on mechanisms that reduce intraocular pressure through enhanced aqueous humor outflow. As a key intermediate or reference compound in the synthesis of prostaglandin-based drugs, it supports the development of new formulations aimed at preventing optic nerve damage and preserving vision. The trans isomer configuration provides improved stability and pharmacological efficacy for clinical and research applications.