Biomaterial Database

Effect of temperature and relative humidity on nitrazepam stability in solid state. 1977

D Genton, and U W Kesselring

The decomposition of a 1% dilution of nitrazepam in microcrystalline cellulose was established by quantitative determination of the two main breakdown products, 2-amino-5-nitrobenzophenone and 3-amino-6-nitro-4-phenyl-2(1H)-quinolone, using in situ diffuse reflectance measurements on thin-layer chromatograms. The decomposition and formation rate constant of nitrazepam and of the breakdown products, respectively, were determined at four temperatures and six relative humidities. By means of a three-parameter regression equation, it was possible to correlate quantitatively the decomposition constant of nitrazepam to both temperature and relative humidity.

UI	MeSH Term	Description	Entries
D007700	Kinetics	The rate dynamics in chemical or physical systems.
D009567	Nitrazepam	A benzodiazepine derivative used as an anticonvulsant and hypnotic.	Nitrodiazepam,Alodorm,Dormalon,Dormo-Puren,Eatan,Imadorm,Imeson,Mogadon,Nitrazadon,Nitrazep,Nitrazepam AL,Nitrazepam-Neuraxpharm,Novanox,Radedorm,Remnos,Rhoxal-Nitrazepam,Serenade,Somnite,Nitrazepam Neuraxpharm,Rhoxal Nitrazepam
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
D004355	Drug Stability	The chemical and physical integrity of a pharmaceutical product.	Drug Shelf Life,Drugs Shelf Lives,Shelf Life, Drugs,Drug Stabilities,Drugs Shelf Life,Drugs Shelf Live,Life, Drugs Shelf,Shelf Life, Drug,Shelf Live, Drugs,Shelf Lives, Drugs
D004356	Drug Storage	The process of keeping pharmaceutical products in an appropriate location.	Drug Storages,Storage, Drug,Storages, Drug
D006813	Humidity	A measure of the amount of WATER VAPOR in the air.	Humidities
D013696	Temperature	The property of objects that determines the direction of heat flow when they are placed in direct thermal contact. The temperature is the energy of microscopic motions (vibrational and translational) of the particles of atoms.	Temperatures
D013997	Time Factors	Elements of limited time intervals, contributing to particular results or situations.	Time Series,Factor, Time,Time Factor