C18H24O6, triclinic, P (1) over bar (no. 2), a = 5.726(1) angstrom, b = 8.845(2) angstrom, c = 9.557(2) angstrom, alpha = 105.27(1)degrees, beta = 102.76(1)degrees, gamma = 103.49(1)degrees, V = 433.0 angstrom(3), Z = 1, R-gt(F) = 0.0412, wR(ref)(F-2) = 0.1075, T = 210 K.