C19H13N3O3S·0.5H2O	F(000) = 1544
Mr = 372.39	Dx = 1.495 Mg m−3
Monoclinic, P21/c	Mo Kα radiation, λ = 0.71073 Å
Hall symbol: -P 2ybc	Cell parameters from 3134 reflections
a = 8.012 (3) Å	θ = 2.5–27.6°
b = 32.775 (11) Å	µ = 0.23 mm−1
c = 12.619 (4) Å	T = 100 K
β = 93.034 (7)°	Plate, yellow
V = 3309 (2) Å3	0.34 × 0.14 × 0.05 mm
Z = 8