Teriflunomide is an anti-inflammatory drug indicated for the treatment of Multiple Sclerosis (MS). This disease presents with a wide spectrum of symptoms and available drugs have different effects, thereby posing a major treatment challenge. Due to its three fluorine atoms, teriflunomide can be detected non-invasively by fluorine-19 (19F) magnetic resonance. The objective of this work is to characterize the 19F MR properties of teriflunomide in order to adapt MR sequences for in vivo measurements. Here, we studied the relaxation times of teriflunomide and their modifications as a result of concentration, pH and temperature changes.