SMILES: C[C@H](CCC(=C)C(C)(C)O)[C@H]1CC[C@@]2([C@@]1(CCC3=C2CC[C@@H]4[C@@]3(CC[C@@H]([C@@]4(C)CO)O[C@H]5[C@@H]([C@H]([C@@H]([C@H](O5)CO)O)O)O)C)C)C
Description: The molecule is a triterpene glycoside that is lanost-8-ene substituted by hydroxy groups at positions 25 and 28, a methylidene group at position 24 and a beta-D-glucopyranosyloxy group at position 3. Isolated from the whole plant of Silybum marianum, it exhibits inhibitory activity against chymotrypsin. It has a role as an EC 3.4.21.1 (chymotrypsin) inhibitor and a plant metabolite. It is a triterpenoid saponin, a tetracyclic triterpenoid, a tertiary alcohol, a beta-D-glucoside and a primary alcohol.