C15H13N3O5, triclinic, P (1) over bar (No. 2), a = 6.979(1) Angstrom, b = 8
.309(1) Angstrom, c = 13.128(1) Angstrom, alpha = 105.566(9)degrees, P = 10
5.287(8)degrees, gamma = 93.15(1)degrees, V = 700.9 Angstrom(3), Z = 2, R-g
t(F) = 0.043, wR(ref)(F) = 0.055, T= 292 K.