1	GBH	2-{4-[2-(beta-D-glucopyranosyloxy)ethyl]piperazin-1-yl}ethanesulfonic acid	1.000
2	GBE	3-{4-[2-(beta-D-glucopyranosyloxy)ethyl]piperazin-1-yl}propane-1-sulfonic acid	0.710