Product Name：Gardenoside

Detection：HPLC

Package：25kg/drum

Chemical Name：Cyclopenta pyran-4-carboxylic acid, 1-(β-D-glucopyranoxyloxy)-1, 4a, 7, 7a-tetrahydro-7-hydroxy-7-hydroxy-7-(hydroxymethyl)-, methyl ester, [1S-(1α, 4aα, 7α, 7aα)]-

　Molecular Formula：C17H24O11;

　Molecular weight：404.36

　Physical appearance：light yellow powder,melting point118～120°,[α]D-100.8°(methanol)。NMR (D2 O): 5.83 (d, J=2.0, C-1), 7.38 (d, J=1.5, C-3), 6.27 (dd, J6,7 =6.0, J6,5 =2.5, (C-6), 5.74 (dd, J7,6 =0, J7? =1.0 C-7), 2.73 (dd, J9，5 =9.0, J9，1 =2.0 C-9), 3.78 (s, COOCH3); UVλMeOHmax nm (logε): 237 (4.01); IRνnujolmax cm -1: 3500～3300, 1695, 1645[1]; 13CNMR[2]。