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Table 2 MS data of major identified/unknown compounds in the HPLC chromatograms of R-RPM

From: Comparison of raw and processed Radix Polygoni Multiflori (Heshouwu) by high performance liquid chromatography and mass spectrometry

Peak No.

Mass Spectra

Identified compounds (tentative names)

1

291.1 ([M+H]+); 581.2 ([2M+H]+)

Catechin

2

407.1 ([M+H]+)

2,3,5,4'-tetrahydroxystilbene-2-O-β-D- glucopyranoside

3

257.1 ([M+H-glu]+); 419.1 ([M+H]+)

1,3-dihydroxy-6,7-dimethylxanthone-1- O-β-D- glucopyranoside

4

247.1 ([M+H-glu]+); 409.1 ([M+H]+); 431.1 ([M+Na]+)

Torachrysone-8- O-β-D- glucopyranoside

5

271.1 ([M+H-glu]+); 455.1 ([M+Na]+)

Emodin-8-O-β-D-glucopyranoside

6

271.1 ([M+H-malonyl-glu]+); 541.1 ([M+Na]+); 1059.2 ([2M+K]+)

Emodin-8-(6'-O-malonyl)-glucoside

7

285.1 ([M+H-glu]+); 469.1 ([M+Na]+)

Physcion-8-O-β-D- glucopyranoside

8

285.1 ([M+H-malonyl-glu]+); 555.1 ([M+Na]+); 1103.2 ([2M+K]+)

Physcion-8-O-(6'-O-malonyl)-glucoside

9

271.1 ([M+H]+)

Emodin

10

285.1 ([M+H]+)

Physcion