C21H26N2O4	F(000) = 396
Mr = 370.44	Dx = 1.260 Mg m−3
Monoclinic, C2	Mo Kα radiation, λ = 0.71073 Å
Hall symbol: C 2y	Cell parameters from 813 reflections
a = 12.9691 (13) Å	θ = 2.5–23.2°
b = 4.601 (1) Å	µ = 0.09 mm−1
c = 16.3639 (16) Å	T = 298 K
β = 91.621 (1)°	Needle-like, colourless
V = 976.1 (3) Å3	0.48 × 0.40 × 0.32 mm
Z = 2