Antimicrobial, Cytotoxic, and Antioxidant Potential of a Novel Flavone “6,7,4′-Trimethyl Flavone” Isolated from Wulfenia amherstiana

Table 3

¹³C-NMR and ¹H-NMR data of quercetin.

No.	^13C-NMR (PPM)	^1H-NMR (PPM)
1
2	147.4
3	136.2	(1H, s)
4	176.4
5	161.2	(1H, s)
6	98.7	6.07 (1H, d), J = l.8 Hz
7	164.4	7.7 (1H, s)
8	93.8	6.28 (1H, d), J = 1.8 Hz
9	157.6
10	98.7
1′	122.5
2′	115.6	7.62 (1H, d), J = 8.51 Hz
3′	145.5
4′	148.2
5′	116.1	6.78 (lH, d), J = 8.4 Hz
6′	115.7	7.53 (1H, d), J = 8.40 Hz

J is the coupling constant and is measured in Hz.