The chemical structures of flavones compounds, extracted from various part of S. dulcis.

No.	Compound	Part of plant	Chemical structure	CAS number	Chemical formula	Ref.
19	Scutellarin methylester	Whole plant			C22H20O12	12
20	Scutellarin	Whole plant		27740-01-8	C21H18O12	7
21	5,7,8,3′,4′,5′-Hexahydroxy-flavone glucuronide	Whole plant			C21H18O14	12
22	5-Hydroxy-6,7-dimethoxyflavone-4′-O-β-glucose	Whole plant			C23H24O11	12
23	iso-Vitexin	Leaves		38953-85-4	C21H20O10	3
24	5,7-Dihydroxy-3′4′,6,8-tetrametoxyflavone	Whole plant		56003-01-1	C19H18O8	13
25	Acerosin	Aerial		15835-74-2	C18H16O8	15
26	Nevadensin	Leaves		10176-66-6	C18H16O7	16
27	5,6,4′-Trihydroxyflavone 7-O-α-L-2,3-di-O-acetylrhamnopyranosyl-(1→6)-β-d-glucopyranoside	Whole plant		682354-22-9	C31H34O17	14
28	Apigenin 7-O-α-l-2,3-di-O-acetylrhamnopyranosyl-(1→6)-β-d-glucopyranoside	Whole plant		682354-24-1	C31H34O16	14
29	Apigenin 7-O-α-l-3-O-acetylrhamnopyranosyl-(1→6)-β-d-glucopyranoside	Whole plant		682354-23-0	C29H32O15	14
30	Acacetin	Whole plant		480-44-4	C16H12O5	3
31	Apigenin	Whole plant		520-36-5	C15H10O5	15
32	Cirsimarin	Whole plant		13020-19-4	C23H24O11	3
33	Cynaroside	Whole plant		5373-11-5	C21H20O11	3
34	Homoplantaginin	Aerial		17680-84-1	C22H22O11	15
35	Linarin	Whole plant		480-36-4	C28H32O14	3
36	Pectolinarin	Aerial		28978-02-1	C29H34O15	15
37	Isorhoifolin	Aerial		552-57-8	C27H30O14	7
38	Vicenin-2	Whole plant		23666-13-9	C27H30O15	3
39	Vitexin	Leaves		3681-93-4	C21H20O10	3
40	Luteolin	Whole plant		491-70-3	C15H10O6	15
41	Scutellarein	Whole plant		529-53-3	C15H10O6	15
42	Hispidulin	Aerial		1447-88-7	C16H12O6	15
43	Apigenin-8-C-α-l-arabinopyranoside	Aerial		38642-55-6	C20H18O9	15
44	Apigenin-7-O-glucuronide	Leaves		29741-09-1	C21H18O11	16
45	Hispidulin-7-O-glucuronide	Leaves		31105-76-7	C22H20O12	16
46	Cirsimaritin	Leaves		6601-62-3	C17H14O6	16
47	Cirsiliol	Leaves		34334-69-5	C17H14O7	16
48	Salvigenin	Leaves		19103-54-9	C18H16O6	16
49	Scutellarein 7-O-α-glucuronamide	Aerial		1402088-78-1	C21H19NO11	8