The assay and stability of chlorpropamide in solid dispersion with urea

Author:

Ford James L1,Stewart Alan F1,Rubinstein Michael H1

Affiliation:

1. School of Pharmacy, Liverpool Polytechnic, Byrom Street, Liverpool L3 3AF, UK

Abstract

Abstract Thin layer chromatography followed by reflectance densitometry has been used to evaluate the stability of chlorpropamide-urea during the fusion process. Urea was found to decompose to biuret and chlorpropamide to p-chlorobenzenesulphonamide: several other unidentified decomposition products were detected. The energy for decomposition of chlorpropamide was 57·1 kJmol−1 for melts containing 15 and 30% chlorpropamide. Decomposition followed apparent first order kinetics.

Publisher

Oxford University Press (OUP)

Subject

Pharmaceutical Science,Pharmacology

Reference17 articles.

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