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[Diflucortolone-21-valerate Reference Standard (Control 871) of National Institute of Hygienic Sciences]. 1989

M Tanaka, and R Hiroshige, and M Murai, and H Tokunaga, and S Okada, and T Kimura

Diflucortolone-21-valerate was tested for the preparation of "Diflucortolone-21-valerate Reference Standard (Control 871)". Analytical data obtained were as follows: loss on drying, 0.05%; infrared spectrum, 1745, 1727, 1667, 1625, 1611, 1169 cm-1; ultraviolet spectrum, lambda max = 239 nm; absorbance, E1%1cm (239 nm) = 348.8; optical rotation, [alpha]20D: + 100.8 degrees; melting point, 203.2 degrees C; thin-layer chromatography, three contaminants were detected; high-performance liquid chromatography, two contaminants were detected; fluorine, 8.06%. On the basis of those results, this material was authorized as the National Institute of Hygienic Sciences Reference Standard (Control 871).

UI MeSH Term Description Entries
D007564 Japan A country in eastern Asia, island chain between the North Pacific Ocean and the Sea of Japan, east of the Korean Peninsula. The capital is Tokyo. Bonin Islands
D010602 Pharmacopoeias as Topic Works about authoritative treatises on drugs and preparations, their description, formulation, analytic composition, physical constants, main chemical properties used in identification, standards for strength, purity, and dosage, chemical tests for determining identity and purity, etc. Formulary, National,National Formulary,Formularies, National,National Formularies
D012015 Reference Standards A basis of value established for the measure of quantity, weight, extent or quality, e.g. weight standards, standard solutions, methods, techniques, and procedures used in diagnosis and therapy. Standard Preparations,Standards, Reference,Preparations, Standard,Standardization,Standards,Preparation, Standard,Reference Standard,Standard Preparation,Standard, Reference
D002627 Chemistry, Physical The study of CHEMICAL PHENOMENA and processes in terms of the underlying PHYSICAL PHENOMENA and processes. Physical Chemistry,Chemistries, Physical,Physical Chemistries
D002851 Chromatography, High Pressure Liquid Liquid chromatographic techniques which feature high inlet pressures, high sensitivity, and high speed. Chromatography, High Performance Liquid,Chromatography, High Speed Liquid,Chromatography, Liquid, High Pressure,HPLC,High Performance Liquid Chromatography,High-Performance Liquid Chromatography,UPLC,Ultra Performance Liquid Chromatography,Chromatography, High-Performance Liquid,High-Performance Liquid Chromatographies,Liquid Chromatography, High-Performance
D002855 Chromatography, Thin Layer Chromatography on thin layers of adsorbents rather than in columns. The adsorbent can be alumina, silica gel, silicates, charcoals, or cellulose. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed) Chromatography, Thin-Layer,Thin Layer Chromatography,Chromatographies, Thin Layer,Chromatographies, Thin-Layer,Thin Layer Chromatographies,Thin-Layer Chromatographies,Thin-Layer Chromatography
D004060 Diflucortolone A topical glucocorticoid used in various DERMATOSES. It is absorbed through the skin, bound to plasma albumin, and may cause adrenal suppression. It is also administered as the valerate. Ro 10-7614,Ro 10 7614,Ro 107614
D004340 Drug Contamination The presence of organisms, or any foreign material that makes a drug preparation impure. Drug Adulteration,Drug Contamination, Chemical,Drug Contamination, Microbial,Drug Contamination, Physical,Drug Impurity,Adulteration, Drug,Chemical Drug Contamination,Chemical Drug Contaminations,Contamination, Chemical Drug,Contamination, Drug,Contamination, Microbial Drug,Contamination, Physical Drug,Contaminations, Chemical Drug,Contaminations, Microbial Drug,Contaminations, Physical Drug,Drug Adulterations,Drug Contaminations,Drug Contaminations, Chemical,Drug Contaminations, Microbial,Drug Contaminations, Physical,Drug Impurities,Impurity, Drug,Microbial Drug Contamination,Microbial Drug Contaminations,Physical Drug Contamination,Physical Drug Contaminations
D005448 Fluocortolone A glucocorticoid with anti-inflammatory activity used topically for various skin disorders. Fluocortolone Caproate,Fluocortolone Pivalate,Ultralan,Caproate, Fluocortolone,Pivalate, Fluocortolone
D013055 Spectrophotometry, Infrared Spectrophotometry in the infrared region, usually for the purpose of chemical analysis through measurement of absorption spectra associated with rotational and vibrational energy levels of molecules. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed) IR Spectra,Infrared Spectrophotometry,IR Spectras,Spectra, IR

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