[Application of infrared absorption spectroscopy to examination of drugs and their preparations. XX. Studies on the polymorphism by differential thermal analysis and infrared analysis].
D002087:Butyrates / Q000032:analysis; D003460:Crystallization; D006993:Hypnotics and Sedatives / Q000032:analysis; D007259:Infrared Rays; D013057:Spectrum Analysis; D013449:Sulfonamides / Q000032:analysis; D013696:Temperature; D014050:Toluene / Q000032:analysis; D014508:Urea / Q000032:analysis
D002087:Butyrates; D006993:Hypnotics and Sedatives; D013449:Sulfonamides; D014050:Toluene; D014508:Urea