Fig. 2From: Pharmacokinetics of five phthalides in volatile oil of Ligusticum sinense Oliv.cv. Chaxiong, and comparison study on physicochemistry and pharmacokinetics after being formulated into solid dispersion and inclusion compoundHPLC chromatograms of various constituents; a reference substances; b sample; c negative sample. 1. senkyunolide A (SA); 2. N-butylphthalide (NBP) 3. Neocnidilide (NOL); 4. Z-ligustilide (ZL); 5. butenyl phthalide (BP)Back to article page