The title compound 3 was prepared starting from the keturazole 1 by Wittig reaction and subsequent oxidative hydrolysis of the urazole 2. It crystallizes monoclinically in the space group P21/a with a = 1076.4(4), b = 1120.5(4), c = 1039.9(4) pm, β = 116.89(3)° and Z = 4.
Zeitschrift für Kristallographie – Crystalline Materials offers a place for researchers to present results of their crystallographic studies. The journal includes theoretical as well as experimental research. It publishes Original Papers, Letters and Review Articles in manifold areas of crystallography.