Phenolic fingerprints of the Pacific seagrass Phyllospadix torreyi - Structural characterization and quantification of undescribed flavonoid sulfates Author Grignon-Dubois, Micheline Author Rezzonico, Bernadette Author Blanchet, Hugues text Phytochemistry 2022 113256 2022-09-30 201 1 15 http://dx.doi.org/10.1016/j.phytochem.2022.113256 journal article 54890 10.1016/j.phytochem.2022.113256 852a21e0-372b-4cad-9495-b2d9ef267d6d 1873-3700 8235322

Table 2 1 H-NMR data for flavonoid sulfates 3, 6, 7, 11 15 in DMSO‑ d (δ ppm, J (Hz)).

Compound	3	6	8	2′	3′	5′	6′	OMe
3	6.50 [1 H, s]	6.70 [1 H,	7.12 [1 H,	7.84 [1 H, d (2.3)]		6.97 [1 H, d [8.5])	7.63 [1 H, dd (2.3,	3.81 [3 H,
		d (2.2)]	d (2.2)]				8.5)]	s]
6	6.75 [1 H, s]	6.57 [1 H,	6.98 [1 H,	7.92 [1 H, d (2.3)]		6.99 [1 H, d [8.6])	7.71 [1 H, dd (2.3,
		d (2.1)]	d (2.1)]				8.6)]
7	6.73 [1 H,		7.32 [1 H, s]	7.93 [1 H, d (2.3)]		6.96 [1 H, d (8.6)]	7.71 [1 H, dd (2.3,	3.76 [3 H,
	s)]						8.6)]	s]
11	6.74 [1 H, s]	6.51 [1 H,	7.01 [1 H,	7.44 [1 H, d (2.1)]		6.87 [1 H, d [8.9])	7.44 [1 H, dd (2.1,
		d (2.1)]	d (2.1)]				8.9)]
12	6.75 [1 H, s]		7.32 [1 H, s]	7.46 [1 H, d (2.0)]		6.86 [1 H, d [8.8])	7.45 [1 H, dd (2.0,	3.72 [3 H,
							8.8)]	s]
13	6.69 [1 H,	6.18 [1 H,	6.49 [1 H,	7.89 [1 H, d (2.3)]		6.96 [1 H, d [8.6])	7.68 [1 H, dd (2.3,
	s)]	d (2.1)]	d (2.1)]				8.6)]
14	6.44 [1 H,		6.15 [1 H, s]	7.79 [1 H, d (2.3)]		6.93 [1 H, d (8.6)]	7.58 [1 H, dd (2.3,	3.67 [3 H,
	s)]						8.6)]	s]
15		6.81 [1 H, s]	7.33 [1 H, s]	7.91 [1 H,	6.89 [1 H,	6.89 [1 H,	7.91 [1 H, d (8.78)]	3.73 [3 H,
				d (8.78)]	d (8.78)]	d (8.78)]		s]