Effect of Choice of Solvent on Crystallization Pathway of Paracetamol: An Experimental and Theoretical Case Study

Autor: Surahit Chewle, Franziska Emmerling, Marcus Weber
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: Crystals, Vol 10, Iss 12, p 1107 (2020)
Druh dokumentu: article
ISSN: 2073-4352
DOI: 10.3390/cryst10121107
Popis: The choice of solvents influences crystalline solid formed during the crystallization of active pharmaceutical ingredients (API). The underlying effects are not always well understood because of the complexity of the systems. Theoretical models are often insufficient to describe this phenomenon. In this study, the crystallization behavior of the model drug paracetamol in different solvents was studied based on experimental and molecular dynamics data. The crystallization process was followed in situ using time-resolved Raman spectroscopy. Molecular dynamics with simulated annealing algorithm was used for an atomistic understanding of the underlying processes. The experimental and theoretical data indicate that paracetamol molecules adopt a particular geometry in a given solvent predefining the crystallization of certain polymorphs.
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