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Table 1 HPLC-DAD and ESI-MS data for quercetin derivatives from the leaves of B . longifolia

From: Quercetin and quercetin 3-O-glycosides from Bauhinia longifolia (Bong.) Steud. show anti-Mayaro virus activity

  

t R

[M-H]

λmax

Compound

Name

(min)

( m/z)

(nm)

1

Guaijaverin

12.7

433

255, 354

2

Quercetin

22.1

301

255, 368

3

Quercitrin

14.4

447

256, 352

4a

Isoquercitrin

9.3

463

256, 356

4b

Hyperin

10.2

463

255, 356

  1. tR – retention time (in min).
  2. [M-H]- – pseudo molecular ion observed on the ESI-MS spectra at the negative mode.
  3. λ max – maximum absorption bands in the UV spectra.
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Parasites & Vectors

ISSN: 1756-3305

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