title: Carb-oxy-methyl ursolate monohydrate.
abstract: In the title compound, C(28)H(50)O(5)·H(2)O, all of the six-membered rings of the penta-cyclic triterpene skeleton adopt chair conformations. In the crystal, mol-ecules are linked by O-H⋯O and C-H⋯O hydrogen bonds.
authors.forename: Yan
authors.initials: Y
authors.lastname: Zhong
authors.forename: Zhaohui
authors.initials: Z
authors.lastname: Dai
authors.forename: Yanbo
authors.initials: Y
authors.lastname: Teng
authors.forename: Bin
authors.initials: B
authors.lastname: Wu
authors.forename: Jianping
authors.initials: J
authors.lastname: Zhou