, the crystals showed no diffraction even using a synchrotron X-ray source. Diffraction-quality crystals...% propylene glycol. Crystals appeared in 2–3 d after setup of the drop and grew to maximum dimensions of 0.3 x... 0.1 x 0.1 mm within a week (Figure 2). The crystals diffracted to 2.45 Å resolution and belonged...