Table 2. Experimental details.

Crystal data
Chemical formula	C9H16O4
M r	188.22
Crystal system, space group	Monoclinic, P21/c
Temperature (K)	90
a, b, c ()	7.7403(5), 18.1498(11), 6.7335(5)
()	103.281(2)
V (3)	920.66(11)
Z	4
Radiation type	Mo K
(mm1)	0.11
Crystal size (mm)	0.28 0.27 0.25
Data collection
Diffractometer	Bruker D8 Venture
Absorption correction	Multi-scan (SADABS; Bruker, 2014 ▸)
T min, T max	0.97, 0.97
No. of measured, independent and observed [I > 2(I)] reflections	8165, 1612, 1205
R int	0.037
(sin /)max (1)	0.595
Refinement
R[F 2 > 2(F 2)], wR(F 2), S	0.036, 0.092, 1.01
No. of reflections	1612
No. of parameters	121
H-atom treatment	H-atom parameters constrained
max, min (e 3)	0.25, 0.27

Computer programs: APEX2 and SAINT (Bruker, 2014 ▸), SHELXS2013 (Sheldrick, 2008 ▸), SHELXL2014 (Sheldrick, 2015 ▸), Mercury (Macrae et al., 2006 ▸), publCIF (Westrip, 2010 ▸) and PLATON (Spek, 2009 ▸).