title: [Analytical studies on thiopyrazolone derivatives. II. Ultraviolet absorption spectra and hydrogen bonding abilities of 1,2,3,4-substituted-3-pyrazoline-5-thiones].
mesh_terms: D000632:Aminopyrine; D000983:Antipyrine; D055598:Chemical Phenomena; D002621:Chemistry; D006859:Hydrogen; D007259:Infrared Rays; D000432:Methanol; D010636:Phenols; D011720:Pyrazoles; D013053:Spectrophotometry; D013440:Sulfides; D014466:Ultraviolet Rays
chemical_list: D010636:Phenols; D011720:Pyrazoles; D013440:Sulfides; D000632:Aminopyrine; D006859:Hydrogen; D000983:Antipyrine; D000432:Methanol