moronic acid

Etymology
From (the exocyclic hydroxy form), from, morolic acid having been extracted from the species.

Noun

 * 1)  A triterpenoid organic acid that is found in  resin.
 * 2) * 2001, J. L. C. H. van Valkenburg, Ludivina S. De Padua, N. Bunyapraphatsara, Roeland Hendrikus Maria Julien Lemmens, Medicinal and Poisonous Plants, Part 2, page 471,
 * Two major anti-HSV[Herpes Simplex Virus] compounds, moronic acid and betulonic acid, were isolated from the herbal extract using ethyl acetate at pH 10. Moronic acid was quantitatively the major anti-HSV compound in the ethyl acetate-soluble fraction.
 * 1) * 2008, Amanda J. Norbutus, thesis, Technical Investigation of the Materials and Methods Utilized in a Copy of a 17th Century Dutch Genre Painting: Gerrit Dou's Man Interrupted at His Writing (1635), page 23,
 * However, a previous analysis of Steen's Supper at Emmaeus revealed that his varnish contains more moronic acid than other 17th century varnishes.49
 * 1) * 2012, Najeeb A. Shirwany, Ming-Hui Zou, The Ubiquitin Proteasome System in Endothelial Cell Dysfunction and Vascular Disease, Jonathon W. Homeister, Monte S, Willis (editors), Molecular and Translational Vascular Medicine, page 118,
 * Synthetic inhibitors that are widely used in experimental studies are reversible peptide aldehyde inhibitors (e.g., MG132), irreversible moronic acid inhibitors (e.g., PS-341), and vinyl sulfone inhibitors (e.g., NLVS) [78].