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Image Number 14 for United States Patent #5143917.

The synthesis and application of N(1)-n-alkyl-pyrimidinium-salts are described. These surfactants have a very small critical micelle concentration ()CMC) in the order of 10.sup.-5 -10.sup.-7 Mol/Liter. These N(1)-n-alkyl-pyrimidinium components have pharmacological activities and can act as antimetabolites.

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