ArticleMolecules (Basel, Switzerland)2022
Solubility and Thermodynamic Data of Febuxostat in Various Mono Solvents at Different Temperatures.
Article in Molecules (Basel, Switzerland), 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed, 11 citations in OpenAlex.
- Evaluation of Pharmacokinetic Feasibility of Febuxostat/L-pyroglutamic Acid Cocrystals in Rats and Mice.Pharmaceutics · 2023Article
- Solubilization and Thermodynamic Analysis of Isotretinoin in Eleven Different Green Solvents at Different Temperatures.Materials (Basel, Switzerland) · 2022Article
- Solubility and Thermodynamic Properties of Febuxostat in Various (PEG 400 + Water) Mixtures.Materials (Basel, Switzerland) · 2022Article
- New Insights into Thermodynamics of Solutes in Neat and Complex Solvents.Molecules (Basel, Switzerland) · 2022Article
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Authors and funding
4 authors at 1 institution in 1 country.
Funding
Abstract
This study examines the solubility and thermodynamics of febuxostat (FBX) in a variety of mono solvents, including “water, methanol (MeOH), ethanol (EtOH), isopropanol (IPA), 1-butanol (1-BuOH), 2-butanol (2-BuOH), ethylene glycol (EG), propylene glycol (PG), polyethylene glycol-400 (PEG-400), ethyl acetate (EA), Transcutol-HP (THP), and dimethyl sulfoxide (DMSO)” at 298.2−318.2 K and 101.1 kPa. The solubility of FBX was determined using a shake flask method and correlated with “van’t Hoff, Buchowski-Ksiazczak λh, and Apelblat models”. The overall error values for van’t Hoff, Buchowski-Ksiazczak λh, and Apelblat models was recorded to be 1.60, 2.86, and 1.14%, respectively. The maximum mole fraction solubility of FBX was 3.06 × 10−2 in PEG-400 at 318.2 K, however the least one was 1.97 × 10−7 in water at 298.2 K. The FBX solubility increased with temperature and the order followed in different mono solvents was PEG-400 (3.06 × 10−2) > THP (1.70 × 10−2) > 2-BuOH (1.38 × 10−2) > 1-BuOH (1.37 × 10−2) > IPA (1.10 × 10−2) > EtOH (8.37 × 10−3) > EA (8.31 × 10−3) > DMSO (7.35 × 10−3) > MeOH (3.26 × 10−3) > PG (1.88 × 10−3) > EG (1.31 × 10−3) > water (1.14 × 10−6) at 318.2 K. Compared to the other combinations of FBX and mono solvents, FBX-PEG-400 had the strongest solute-solvent interactions. The apparent thermodynamic analysis revealed that FBX dissolution was “endothermic and entropy-driven” in all mono solvents investigated. Based on these findings, PEG-400 appears to be the optimal co-solvent for FBX solubility.
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