title: 3a,8a-Dihy-droxy-1,3,3a,8a-tetra-hydro-indeno-[1,2-d]imidazole-2,8-dione.
abstract: In the title mol-ecule, C(10)H(8)N(2)O(4), the imidazolidine ring adopts a twisted conformation. In the crystal, the mol-ecules are linked via a pair of bifurcated inter-molecular O-H⋯O hydrogen bonds, forming an inversion dimer. The dimers are further linked via N-H⋯O hydrogen bonds into a tape along the b axis.
authors.forename: Raza Murad
authors.initials: RM
authors.lastname: Ghalib
authors.forename: Rokiah
authors.initials: R
authors.lastname: Hashim
authors.forename: Sayed Hasan
authors.initials: SH
authors.lastname: Mehdi
authors.forename: Ching Kheng
authors.initials: CK
authors.lastname: Quah
authors.forename: Hoong-Kun
authors.initials: HK
authors.lastname: Fun