Table 3. Experimental details.

	midodrine
Crystal data
Chemical formula	C12H19N2O4+·Cl−
M r	290.75
Crystal system, space group	Monoclinic, P21/c
Temperature (K)	295
a, b, c (Å)	5.17893 (2), 8.25455 (3), 32.95227 (15)
β (°)	87.2465 (3)
V (Å3)	1407.08 (1)
Z	4
Radiation type	Synchrotron, λ = 0.46873 Å
μ (mm−1)	0.03
Specimen shape, size (mm)	Cylinder, 2.0 × 1.5
Data collection
Diffractometer	11-BM, APS
Specimen mounting	Kapton capillary
Data collection mode	Transmission
Scan method	Step
2θ values (°)	2θmin = 0.510, 2θmax = 49.995, 2θstep = 0.001
Refinement
R factors and goodness of fit	Rp = 0.049, Rwp = 0.061, Rexp = 0.044, R(F2) = 0.03133, χ2 = 2.008
No. of parameters	96
No. of restraints	42
(Δ/σ)max	8.514

Computer programs: GSAS-II (Toby & Von Dreele, 2013 ▸).