Inhibition of Tumor Growth and Immunomodulatory Effects of Flavonoids and Scutebarbatines of Scutellaria barbata D. Don in Lewis-Bearing C57BL/6 Mice

Table 1

The retention time, UVmax, and MS ion fragment information of flavonoids and scutebarbatines using HPLC-DAD and LC-ESI/MS/MS.

Number	Classification	Compound identity	(min)	(−)ESI-MS	UVmax (nm)	Ion fragments
1	Flavonoids	Scutellarin	29.14	461.32	225, 282, 334	433, 285, 174
2		Naringin	54.26	579.34	283	547, 519, 444, 332, 273, 171
3		Scutellarein	57.93	269.15	270, 320	268, 225, 148
4		Luteolin	64.15	285.13	210, 254, 349	257, 241, 175
5		Apigenin	65.77	269.02	210, 265, 334	267, 239, 223
6		Wogonin	72.81	285.07	200, 275	267, 239, 223
7	Scutebarbatines	Scutebarbatine A	80.53	557.60	220, 264	503, 473, 353, 257
8		Scutebarbatine B	92.20	556.17	220, 264	508, 478, 449, 356, 192