Medium chain esters are prepared from fractionated vegetable oil fatty acids and glycerin or other glycols. Captex products are specifically designed for formulators interested in highly-refined emollients, solvents, fixatives, solubilizers, extenders and carriers. Captex esters have a long history of use as carriers and solubilizers.
Capmul excipients are mono-and diglyceride emulsifiers prepared through the glycerolysis of select fats and oils. They can be prepared by esterification of glycerin with specific fatty acids. They are lipophilic, insoluble in water and soluble in oils at elevated temperatures. They are used to produce stable emulsions and to modify viscosity. The Capmul series exhibit excellent solvent properties.
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