Table 2. Experimental details.

Crystal data
Chemical formula	C10H14N2O3
M r	210.23
Crystal system, space group	Monoclinic, P21/c
Temperature (K)	173
a, b, c ()	11.3545(3), 18.1097(5), 10.4689(3)
()	100.119(2)
V (3)	2119.20(10)
Z	8
Radiation type	Mo K
(mm1)	0.10
Crystal size (mm)	0.35 0.25 0.01
Data collection
Diffractometer	Nonius KappaCCD
No. of measured, independent and observed [I > 2(I)] reflections	10741, 6174, 3235
R int	0.068
(sin /)max (1)	0.705
Refinement
R[F 2 > 2(F 2)], wR(F 2), S	0.069, 0.158, 1.01
No. of reflections	6174
No. of parameters	287
H-atom treatment	H atoms treated by a mixture of independent and constrained refinement
max, min (e 3)	0.28, 0.29

Computer programs: KappaCCD Server Software (Nonius, 1997 ▶), HKL DENZO SCALEPACK (Otwinowski Minor, 1997 ▶), SIR2011 (Burla et al., 2012 ▶), ORTEP-3 for Windows (Farrugia, 2012 ▶), SHELXL97 (Sheldrick, 2008 ▶), PLATON (Spek, 2009 ▶) and publCIF (Westrip, 2010 ▶).