title: 4-Hydr-oxy-1-oxo-1,2-dihydro-phthalazine-6,7-dicarboxylic acid dihydrate.
abstract: In the crystal structure of the title compound, C(10)H(6)N(2)O(6)·2H(2)O, the OH and NH groups each serve as a hydrogen-bond donor to one acceptor site whereas the water mol-ecules each serve as a hydrogen-bond donor to two acceptor sites. The hydrogen-bonding scheme gives rise to a three-dimensional network.
authors.forename: Ling-Ling
authors.initials: LL
authors.lastname: Liang
authors.forename: Jian-She
authors.initials: JS
authors.lastname: Zhao
authors.forename: Seik Weng
authors.initials: SW
authors.lastname: Ng