N 2 (187) 2024. P. 85–89

STUDY OF STRESS DEGRADATION AND DETERMINATION OF THE STABILITY OF THE SUBSTANCE AND INJECTION SOLUTION OF SODIUM 2-((4-AMINO-5-THIOPHEN-2-YLMETHYL)-4H-1,2,4-TRIAZOL-3-YL)THIO)ACETATE

D. L. Usenko, A. H. Kaplaushenko

Zaporizhzhia State Medical and Pharmaceutical University, Zaporizhzhia, Ukraine

DOI 10.32782/2226-2008-2024-2-15

Research goal. The aim of the work was to investigate stress degradation and determine the stability of the substance and injection solution of sodium 2-((4-amino-5-(thiophen-2-ylmethyl)-4H-1,2,4-triazol-3-yl)thio)acetate (API) to determine storage conditions and establish shelf life. Research materials. The substance API was synthesized earlier. The chromatographic system used was Agilent 1260 Infinity HPLC, equipped with a diode array detector and a single quadrupole mass spectrometric detector Agilent 6120. Software was OpenLAB CDS.

Methods, research results, and their discussion. The stability determination procedure of the substance and injection solution involves maintaining the dosage forms at a temperature higher than the average storage temperature and constant monitoring of the quantitative content of the active substance during storage. Investigation of stress-induced thermal degradation was conducted in a dry heat oven. Additionally, samples of sodium 2-((4-amino-5-thiophen-2-ylmethyl)-4H-1,2,4-triazol-3-yl)thio)acetate with hydrogen peroxide, 0.1 M alkali, and 0.1 M acid were kept at room temperature for 4 days. The influence of ultraviolet (UV) irradiation on the substance and solution of sodium 2-((4-amino-5-(thiophen-2-ylmethyl)-4H-1,2,4-triazol-3-yl)thio)acetate was also investigated. HPLC system was used to monitor the quantitative content of the active substance. It has been established that the shelf life of substance API and a 1% solution of sodium 2-((4-amino-5-(thiophen-2-ylmethyl)-4H-1,2,4-triazol-3-yl)thio)acetate is at least 2 years. Hydrogen peroxide and ultraviolet radiation have the greatest impact on sodium 2-((4-amino-5-(thiophen-2-ylmethyl)-4H-1,2,4-triazol-3-yl)thio)acetate, so it is recommended to store the observed objects in conditions free from solar radiation.

Key words: 1,2,4-triazoles, active pharmaceutical ingredient, shelf life, stress degradation, parenteral dosage form.

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