Ginsenoside Rb2
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(New page: {{Hierarchy|{{PAGENAME}}}} {{Metabolite |SysName=(3beta,12beta)-20-[(6-O-alpha-L-Arabinopyranosyl-beta-D-glucopyranosyl)oxy]-12-hydroxydammar-24-en-3-yl 2-O-beta-D-glucopyranosyl-beta-D-g...) |
Latest revision as of 10:02, 16 February 2010
Upper classes
IDs and Links | |
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LipidBank | [1] |
LipidMaps | [2] |
CAS | 11021-13-9 |
KEGG | {{{KEGG}}} |
KNApSAcK | |
CDX file | |
MOL file | Ginsenoside Rb2.mol |
Ginsenoside Rb2 | |
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Structural Information | |
Systematic Name | (3beta,12beta)-20-[(6-O-alpha-L-Arabinopyranosyl-beta-D-glucopyranosyl)oxy]-12-hydroxydammar-24-en-3-yl 2-O-beta-D-glucopyranosyl-beta-D-glucopyranoside |
Common Name |
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Symbol | |
Formula | C53H90O22 |
Exact Mass | 1078.592374564 |
Average Mass | 1079.2685000000001 |
SMILES | CC(C)(C1OC(O7)C(OC(C8O)OC(CO)C(C8O)O)C(C(C7CO)O)O) |
Physicochemical Information | |
Melting Point | |
Boiling Point | |
Density | |
Optical Rotation | |
Reflactive Index | |
Solubility | |
Spectral Information | |
Mass Spectra | |
UV Spectra | |
IR Spectra | |
NMR Spectra | |
Chromatograms |
[edit] Spectroscopic Data
M.P.1 | 200 - 203 °C |
IR (KBr)1 | 3400 (OH), 1620 (C=C) cm-1 |
13C-NMR (C5D5N, 25.15MHz)2 | C-1) 39.4, (2) 26.6, (3) 89.1, (4) 39.6, (5) 56.4, (6) 18.3, (7) 35.1, (8) 39.9, (9) 50.1, (10) 36.8, (11) 30.7, (12) 70.1, (13) 49.4, (14) 51.3, (15) 30.7, (16) 26.4, (17) 51.6, (18) 16.2, (19) 15.9, (20) 83.5, (21) 22.2, (22) 36.3, (23) 23.1, (24) 125.8, (25) 131.0, (26) 25.8, (27) 17.9, (28) 28.0, (29) 16.5, (30) 17.3 Glc I (1) 105.0, (2) 83.0, (3) 78.1, (4) 71.5, (5) 78.1, (6) 62.7 Glc II (1) 105.7, (2) 76.9, (3) 79.0, (4) 71.5, (5) 78.7, (6) 62.7 Glc III (1) 97.9, (2) 74.8, (3) 78.7, (4) 71.5, (5) 76.6, (6) 69.0 Ara (1) 104.5, (2) 72.0, (3) 73.9, (4) 68.5, (5) 65.5 |
Permethyl ester
1H-NMR (C5D5N, 100 MHz)1 | 0.79-0.98 (5xCH3), 1.28 (s, CH3), 1.51 (s, CH3), 1.65 (s, CH3), 3.31-3.60 (s, 13xOCH3), 4.23, 4.30, 4.40, 4.65 (each d, each J=7.0 Hz, 4 x anomeric H) |
) S. Shibata et al., Chem.Pharm.Bull., 22, 421 (1974)., 2) T. Fuwa et al., Chem.Pharm.Bull., 31, 2120 (1983).