title: [UV-spectrophotometry in drug control. 41. Drug substances with chromophores and auxochromes in monocyclic compounds (pyrazolone, pyrazolidine, pyridazine, pyrimidine and pyrazine) and bicyclic compounds (benzoxazole, imidazole, benzthiazole and indene)].
abstract: The results of a systematic examination of the spectra of 15 drug substances with chromophores and auxochromes in monocyclic (pyrazolone, pyrazolidin, pyridazine, pyrimidine and pyrazine) and bicyclic compounds (benzoxazol, imidazole, benzthiazole and indene) in the UV and visible range were evaluated. Influences of substituents and solvents on shifts of the E, K, B and R bands were discussed.
authors.affiliation: Staatliches Institut für Arzneimittelkontrolle, Prag, CSSR.
authors.forename: J
authors.initials: J
authors.lastname: Krácmar
authors.forename: J
authors.initials: J
authors.lastname: Krácmarová
authors.forename: M
authors.initials: M
authors.lastname: Remsová
authors.forename: A
authors.initials: A
authors.lastname: Kovárová
mesh_terms: D052160:Benzothiazoles; D001583:Benzoxazoles / Q000032:analysis; D007093:Imidazoles / Q000032:analysis; D004364:Pharmaceutical Preparations / Q000032:analysis*; D011719:Pyrazines / Q000032:analysis; D011720:Pyrazoles / Q000032:analysis; D011724:Pyridazines / Q000032:analysis; D011743:Pyrimidines / Q000032:analysis; D013056:Spectrophotometry, Ultraviolet; D013844:Thiazoles / Q000032:analysis
chemical_list: D052160:Benzothiazoles; D001583:Benzoxazoles; D007093:Imidazoles; D004364:Pharmaceutical Preparations; D011719:Pyrazines; D011720:Pyrazoles; D011724:Pyridazines; D011743:Pyrimidines; D013844:Thiazoles; C005465:benzothiazole
vernacular_title: UV-Spektrophotometrie in der Arzneimittelkontrolle. 41. Mitteilung: Arzneistoffe mit Chromophoren und Auxochromen in Monocyclen (Pyrazolon, Pyrazolidin, Pyridazin, Pyrimidin und Pyrazin) und in Bicyclen (Benzoxazol, Benzimidazol, Benzthiazol, Benzthiadiazol und Inden).