Abstract: Disclosed is a process for preparing menthyl nicotinate with high purity and yield, which consists of a transesterification reaction of menthol with a C1-C4 alkyl ester of the nicotinic acid, in the presence of an alkaline catalyst belonging to the class of C1-C4 alkoxides, linear or branched, and a vacuum distillation of the mixture of reaction products, in the presence of activated carbons.

Abstract: Disclosed is a process for preparing menthyl nicotinate with high purity and yield, which consists of a transesterification reaction of menthol with a C1-C4 alkyl ester of the nicotinic acid, in the presence of an alkaline catalyst belonging to the class of C1-C4 alkoxides, linear or branched, and a vacuum distillation of the mixture of reaction products, in the presence of activated carbons.

Abstract: Compositions for topical use including menthyl nicotinate as primary active ingredient, in such a dose as to stimulate in a subject the sexual response, preferably in such a dose as to maximize this response in a relative short time, and at least one appropriate lipophilic vehicle so as to solubilize the menthyl nicotinate and allow a rapid absorption thereof in the epithelial tissues of the female and/or male erogenous zones.

Abstract: Compositions for topical use including menthyl nicotinate as primary active ingredient, in such a dose as to stimulate in a subject the sexual response, preferably in such a dose as to maximize this response in a relative short time, and at least one appropriate lipophilic vehicle so as to solubilize the menthyl nicotinate and allow a rapid absorption thereof in the epithelial tissues of the female and/or male erogenous zones.

Abstract: A method for the production of indelible script on a paper substrate provides for the introduction of at least one highly penetrating coloring compound having at least two reactive functional groups into the substrate. An oxidation dye in the script is subjected to oxidative polymerization within the paper substrate itself. A liquid composition is disclosed having a solution of at least one oxidation dye with functional groups in a concentration of 0.01% to 40% by weight, such solution including up to 80% by weight of a suspension of carbon black and a solution of an oxidant.

Abstract: Utilization of the Tarchanthus camphoratus and its derivatives in formulations and compositions having insect repellant, anti-irritant, anti-edema, decongestant and soothing properties.