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Determination of Melting Point of Prodrugs of Sulfonamides as an Azo Derivatives of Carvacrol by Open Capillary Method (CAT#: STEM-PPA-0090-YJL)

Introduction

Prodrug is a newer category of drug, which are inactive forms of drug, but can be biotransformed into active form in vivo by means of enzymatically or chemically. A prodrug can be used to get better drug delivery action, pharmacological activity and pharmacokinetics of a parent drug molecule.
Carvacrol is a naturally occurring monoterpenoid found in essential oil of origanum Vulgare, oil of thyme. In some studies it is shown that carvacrol can make apoptosis (cell destruction) in cancer cells. Carvacrol has highest activity against E. coli because of this, carvacrol may be suggested to use routinely to promote gastrointestinal health and to avoid deadly food poisoning.
Azo compounds forms a new class in synthetic organic chemistry which possess various applications mostly as dyes and pigments. Now a day azo compounds are also used in the field of medicinal chemistry. Azo compounds exhibits various properties including antibacterial and antifungal.




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.
In all major pharmacopoeias the open capillary method is described to determine the melting point (slip point) for fats, fatty acids, paraffin, and waxes. In a glass capillary tube open at both ends (1), 10 mm of sample is introduced (2), chilled to a given temperature and immersed into a water bath (3/4). The melting point with open capillary, also known as slip point or slip melting point, is the temperature at which the substance begins to rise in the capillary due to the effect of the increasing temperature and buoyancy.

Applications

Chemical industry; Cosmetic/pharmaceutical industry

Procedure

1. Prepare the substance.
2. Affix one of the capillaries to a thermometer.
3. Place the thermometer with an affixed capillary into a glass.
4. Increase the temperature.

Materials

• Sample Type: crystalline compounds
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