One of the oldest and most widely used commercial enzyme inhibitors is aspirin, Formula: C9H8N2O2, which selectively inhibits one of the enzymes involved in the synthesis of molecules that trigger inflammation. you can also check out more blogs about 89-24-7
One of the major reasons for studying chemical kinetics is to use measurements of the macroscopic properties of a system, Formula: C9H8N2O2, such as the rate of change in the concentration of reactants or products with time.In a article, mentioned the application of 89-24-7, Name is 5-Phenylimidazolidine-2,4-dione, molecular formula is C9H8N2O2
Isolation and structure elucidation of the major degradation products of cefaclor in the solid state
Cefaclor is a beta-lactam antibiotic that degrades slowly under normal storage conditions to several minor products. To obtain samples large enough to permit structure elucidation, cefaclor was allowed to degrade at 40 C (75% relative humidity) and at 85 C. The profile of degradation products formed under these conditions is qualitatively similar to the profile of degradation products observed in samples of cefaclor aged for 14 years at room temperature, although some products found in the sample degraded at 85 C are not formed at the lower temperatures. Using preparative reversed- phase high-performance liquid chromatography (rp-HPLC) and a combination of spectroscopic methods, we have isolated and characterized 17 of these degradation products. Some of these products were also isolated from studies of aqueous degradations. The major products appear to have arisen from five distinct pathways: (1) isomerization of the double bond in the dihydrothiazine ring; (2) decarboxylation; (3) ring contraction of the cephem nucleus to thiazole structures; (4) oxidative attack at carbon 4 of the dihydrothiazine ring; end (5) intramolecular attack of the primary amine of the side chain on either the beta-lactam carbonyl to form 3-phenyl-2,5- diketopiperazines or the ‘masked aldehyde’ at carbon 6 to form 2-hydroxy-3- phenylpyrazine derivatives. The pathway involving oxidation at carbon 4 is particularly important at ambient temperatures and is unique to the solid- state degradation.
One of the oldest and most widely used commercial enzyme inhibitors is aspirin, Formula: C9H8N2O2, which selectively inhibits one of the enzymes involved in the synthesis of molecules that trigger inflammation. you can also check out more blogs about 89-24-7
Reference£º
Imidazolidine – Wikipedia,
Imidazolidine | C3H8N2490 – PubChem