Brassidic acid (22 carbon atoms) was first prepared from erucic acid by Reimer W. in 1886. It is a monounsaturated (one trans (E) double bond; shorthand nomenclature cannot be used to name trans fatty acids) fatty acid member of the sub-group called very long chain fatty acids (VLCFA), from 20 carbon atoms onwards, and is the trans-isomer of erucic acid. At a concentration of 0.1 mM, brassidic acid produced small increases in palmitoyl-CoA oxidation and carnitine acetyltransferase activities in hepatocytes cultured 70 hr.

Poppy acid occurs in opium (Papaver somniferum) and other Papaver species. Meconic acid has been described as a mild narcotic, but it has little or no physiological action, and is not now used medicinally. Its chemical reactions are of importance in toxicology as a valuable indication of the presence of opium.

Poppy acid occurs in opium (Papaver somniferum) and other Papaver species. Meconic acid has been described as a mild narcotic, but it has little or no physiological action, and is not now used medicinally. Its chemical reactions are of importance in toxicology as a valuable indication of the presence of opium.

Molybdenum trioxide (MoO3) is used primarily as an additive to steel and corrosion-resistant alloys. It is also used as a chemical intermediate for molybdenum products; an industrial catalyst; a pigment; a crop nutrient; components of glass, ceramics, and enamels; a flame retardant for polyester and polyvinyl chloride resins; and a reagent in chemical analyses. Molybdenum trioxide was nominated by the NCI for toxicity and carcinogenicity studies as a representative inorganic molybdenum compound. In addition some studies were done, showing the potential utility of MoO3 for treating metastatic cancer cells, which might enable advancements in cancer therapy.