2,6-Pyridinedicarboxylic acid, 4-(2-(2-carboxy-5-(beta-D-glucopyranosyloxy)-2,3-dihydro-6-hydroxy-1H-indol-1-yl)ethenyl)-2,3-dihydro-, monohydrochloride, (S-(R*,R*))- 73464-91-2