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Table 5 Compounds identified in U. dioica fraction 7 by HPLC-PDA-ESI-MS/MS

From: Taraxacum officinale and Urtica dioica extracts inhibit dengue virus serotype 2 replication in vitro

Compound

tR, min

UVmax, nm

[M-H], m/z

MS2 m/z

1

Coumaroyl derivative

15.6

320

387

163

2

Sinapoyl derivative

22.5

322

433

223

3

Quercetin-3-O-rutinoside

43.1

352

609

301

4

Quercetin-3-O-hexose

45.6

352

463

301

5

Kaempferol-3-O-hexose

45.7

350

447

285

6

Kaempferitrin

49.6

356

577

285

7

Kaempferol-3-O-hexose

54.0

348

447

285