Spectroscopic Determination and Computational Characterization of the Charge Transfer Complex of Famotidine with Bromanil
Year: 2025
Type: article
Abstract: High Resolution Image Download MS PowerPoint Slide Famotidine (FMD), a histamine H 2 -receptor antagonist, is commonly used in the management of gastroesophageal reflux disease and gastric ulcers. Despite several reported analytical approaches for its detection, charge-transfer complex (CTC) formation offers a spectrophotometric alternative that uses readily available materials and reproducible conditions. A spectrophotometric method was developed based on the formation of a CTC between FMD and bromanil (BRL). Validation involved investigating reaction stoichiometry, the influence of time and temperature, intra- and interassay precision and accuracy, and application to tablet dosage forms. Additionally, computational modeling was performed to explore the interaction mechanism. The optimized conditions yielded a stable and reproducible BRL-FMD complex. The method demonstrated linearity with R 2 of 0.9999 and % RSD of 0.41%, precision, and accuracy for the quantification of FMD in commercial formulations. Computational analysis, using quantum chemistry, complemented the experimental findings, confirming the charge-transfer interaction and identifying the significant stabilizing factors. This study establishes a reliable and economical spectrophotometric assay for FMD based on CTC formation with BRL. The integrated experimental and computational approach provides mechanistic insight and promotes broader application of CTC-based assays in pharmaceutical analysis.
Source: ACS Omega
Authors: Azizah M. Aldosari, Awwad Radwan, Gamal Mahrous, Adel Alghaith
Institution: King Saud University
Language: English
Subfield: Analytical Chemistry
Field: Chemistry
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $1,935
Funder: King Saud University
Awards: G2461468828, G2693752714
OpenAlex ID: W4417445556