Table 2. Experimental details.

Crystal data
Chemical formula	C4H7N4O+C7H7O3S
M r	298.33
Crystal system, space group	Monoclinic, C2/c
Temperature (K)	296
a, b, c ()	30.8628(7), 6.5559(2), 13.1565(3)
()	96.428(1)
V (3)	2645.27(12)
Z	8
Radiation type	Mo K
(mm1)	0.27
Crystal size (mm)	0.30 0.20 0.20
Data collection
Diffractometer	Bruker Kappa APEXII CCD
Absorption correction	Multi-scan (SADABS; Bruker, 2004 ▸)
T min, T max	0.925, 0.949
No. of measured, independent and observed [I > 2(I)] reflections	14972, 3580, 2986
R int	0.022
(sin /)max (1)	0.687
Refinement
R[F 2 > 2(F 2)], wR(F 2), S	0.037, 0.109, 1.06
No. of reflections	3580
No. of parameters	182
H-atom treatment	H-atom parameters constrained
max, min (e 3)	0.31, 0.25

Computer programs: APEX2 and SAINT (Bruker, 2004 ▸), SHELXS97 and SHELXL97 (Sheldrick, 2008 ▸), PLATON (Spek, 2009 ▸), Mercury (Macrae et al., 2008 ▸) and publCIF (Westrip, 2010 ▸).