Epicillin and ampicillin: crystalline modifications and their physicochemical differences.
D000667:Ampicillin / Q000031:analogs & derivatives* / Q000032:analysis; D055598:Chemical Phenomena; D002621:Chemistry; D003460:Crystallization; D012995:Solubility; D013055:Spectrophotometry, Infrared; D014961:X-Ray Diffraction
D000667:Ampicillin