“…Various terpenoids (Table 2) have been reported from the petroleum ether extract of C.officinalis flowers. They include sitosterols, stigmasterols [9], diesters of diols [10], 3monoesters of taraxasterol, ψ-taraxasterol, lupeol [11,12], erythrodiol, brein [13,14], ursadiol [15], faradiol-3-O-palmitate, faradiol-3-O-myristate, faradiol-3-O-laurate [16], arnidiol-3-O-palmitate, arnidiol-3-O-myristate, arnidiol-3-O-laurate, calenduladiol-3-Opalmitate, calenduladiol-3-O-myristate [17,18], oleanolic acid saponins: calenduloside A-H [19][20][21][22], oleanane triterpene glycoside: calendulaglycoside A, calendulaglycoside A6′-O-n-methyl ester, calendulaglycoside A6'-O-n-butyl ester, calendulaglycoside B, calendulaglycoside B 6′-O-n-butyl ester, calendulaglycoside C, calendulaglycoside C 6′-O-n-methyl ester, calendulaglycoside C 6′-O-n-butyl ester, calenduloside F6′-O-n-butyl ester, calnduloside G6′-O-n-methyl ester [18], glucosides of oleanolic acid (mainly found in roots of grown and senescing plants) I, II, III, VI, VII [23,24], and glucuronides (mainly found in flowers and green parts) F, D, D 2 , C, B and A [25]. One new triterpenic ester of olanane series has been isolated from flowers was cornulacic acid acetate from flowers [26].…”