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Table 1 Main components of QDP

From: Qing-dai powder promotes recovery of colitis by inhibiting inflammatory responses of colonic macrophages in dextran sulfate sodium-treated mice

Peak tR (min) Assigned identity Molecular formula
1 0.999 Butanedioic acid C4H6O4
2 5.775 Isatin C8H5NO2
3 5.908 2,3-Dihydro-4-hydroxy-2-oxo-1H-indole-3-acetic acid C10H8N2O2
4 6.511 Deoxyvascinone C11H10N2O
5 7.729 10H-indolo [3, 2-b] quinoline C15H10N2
6 8.436 2,3-Dihydro-3,4-dihydroxy-2-oxo-1H-indole-3-acetonitrile, 3-Cyanomethyl-3,4-dihydroxyoxindole C10H8N2O3
7 8.856 3-(2-Hydroxyphenyl)-4(3H)-quinazolinone C14H10N2O2
8 8.995 10H-indolo[3,2-b]quinoline-11-carboxylic acid amide C16H11N3O
9 9.589 Tryptanthren C15H8N2O2
10 11.515 Syringin C17H24O9
11 11.909 3-(2-Carboxyphenyl)-4(3H)-quinazolinone C15H10N2O3
12 13.240 Indigo C16H10N2O2
13 13.972 Indican C14H17NO6
14 14.185 Indirubin C16H10N2O2
15 14.658 2-[Cyano(3-indolyl)methylene]-3-indolone C18H11N3O
16 16.612 8,11,12-Trihydroxy-9-octadecenoic acid C19H36O5
17 17.883 Anthranilic acid C7H7NO2
18 18.492 Salicylic acid C7H6O3
19 19.161 Octadecanoic acid C18H36O3
20 19.343 Bisindigotin C32H18N4O2
21 20.550 Qingdainone C23H13N3O2
22 20.854 Betulin C30H50O2
23 21.463 Sugiol C20H28O2
24 22.801 Rotenol C23H24O6
25 23.417 Sitosterol C32H53N7O2
26 24.686 Daucosterol C35H60O6
27 26.836 Clerosterol C29H48O