Standards; Steroids; Pharmaceutical/API Drug Impurities/Metabolites;
Abundant plant triterpene. Occurs in the skin of lupin seeds, in circle, in the latex of fig trees and of rubber plants. It was detected in cocoons of Bombyx mori.
Owen, R., et al.: Food Chem. Toxicol., 38, 647 (2000), Salvador, M., et al.: Food Chem., 80, 359