C10H12N3O3S+·Cl−·H2O	F(000) = 640
Mr = 307.75	Dx = 1.534 Mg m−3
Monoclinic, P21/c	Melting point: 425 K
Hall symbol: -P 2ybc	Mo Kα radiation, λ = 0.71073 Å
a = 8.8587 (5) Å	Cell parameters from 15850 reflections
b = 22.1427 (8) Å	θ = 4.1–30.1°
c = 7.1657 (2) Å	µ = 0.46 mm−1
β = 108.497 (3)°	T = 298 K
V = 1332.98 (10) Å3	Block, yellow
Z = 4	0.30 × 0.15 × 0.10 mm