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Determination of Melting Point of Itraconazole by Capillary Method (CAT#: STEM-PPA-0057-YJL)

Introduction

Itraconazole is an antifungal medication used to treat a number of fungal infections. This includes aspergillosis, blastomycosis, coccidioidomycosis, histoplasmosis, and paracoccidioidomycosis. It may be given by mouth or intravenously. Common side effects include nausea, diarrhea, abdominal pain, rash, and headache. Severe side effects may include liver problems, heart failure, Stevens-Johnson syndrome and allergic reactions including anaphylaxis. <br />Pre-formulation study is an essential part of development process. These studies focus on physicochemical propertyof drug could affect its performance and development of dosage form. These studies are indispensable protocol for development of safe,effective and stable dosage form. The drug sample was identified by various techniques such as IR Spectroscopy, UV Spectroscopy, melting point, partition coefficient for novel formulation.




Principle

Melting point is a characteristic property of solid crystalline substance. It is the temperature at which the solid phase changes to the liquid phase. This phenomenon occurs when the substance is heated.
The melting point measurement is usually performed in thin glass capillary tubes with an internal diameter of 1 mm and a wall thickness of 0.1 – 0.2 mm. A finely-ground sample is placed in the capillary tube to a filling level of 2 – 3 mm and introduced in a heated stand (liquid bath or metal block) in close proximity to a high accuracy thermometer. The temperature in the heating stand is ramped at a user-programmable fixed rate. The melting process is visually inspected to determine the melting point of the sample.

Applications

Chemical industry; Cosmetic/pharmaceutical industry

Procedure

1. Seal capillary.
2. Fill the sample.
3. Install the instrument.
4. Determine the melting point.

Materials

• Sample Type: crystalline compounds