Table 2. Experimental details.

Crystal data
Chemical formula	C5H9N2 +·C6H5O3S−·C5H8N2
M r	350.43
Crystal system, space group	Monoclinic, P21/n
Temperature (K)	150
a, b, c (Å)	10.8820 (6), 8.4029 (4), 18.9678 (11)
β (°)	95.440 (2)
V (Å3)	1726.61 (16)
Z	4
Radiation type	Mo Kα
μ (mm−1)	0.21
Crystal size (mm)	0.55 × 0.42 × 0.33
Data collection
Diffractometer	Bruker AXS D8 Quest CMOS diffractometer
Absorption correction	Multi-scan (SADABS; Krause et al., 2015 ▸)
T min, T max	0.716, 0.747
No. of measured, independent and observed [I > 2σ(I)] reflections	74762, 6612, 5787
R int	0.032
(sin θ/λ)max (Å−1)	0.771
Refinement
R[F 2 > 2σ(F 2)], wR(F 2), S	0.035, 0.095, 1.05
No. of reflections	6612
No. of parameters	225
H-atom treatment	H atoms treated by a mixture of independent and constrained refinement
Δρmax, Δρmin (e Å−3)	0.40, −0.44

Computer programs: APEX3 and SAINT (Bruker, 2018 ▸), SHELXS97 (Sheldrick, 2008 ▸), SHELXL2018/3 (Sheldrick, 2015 ▸), shelXle (Hübschle et al., 2011 ▸), OLEX2 (Dolomanov et al., 2009 ▸), publCIF (Westrip, 2010 ▸) and enCIFer (Allen et al., 2004 ▸).