C21H14OS	Dx = 1.390 Mg m−3
Mr = 314.38	Melting point = 400–401 K
Orthorhombic, P212121	Mo Kα radiation, λ = 0.71073 Å
Hall symbol: P 2ac 2ab	Cell parameters from 4354 reflections
a = 5.5116 (1) Å	θ = 1.8–30.0°
b = 14.8497 (2) Å	µ = 0.22 mm−1
c = 18.3625 (3) Å	T = 100 K
V = 1502.89 (4) Å3	Block, yellow
Z = 4	0.50 × 0.19 × 0.11 mm
F(000) = 656