Name 1,​3,​5,​6-​Tetrahydroxy-​7-​(3-​methylbut-​2-​enyl)​xanthone
Appearance
CAS No. 1080533-32-9
Formulae
Molecular Weight 328.316
Natural Resources
Identification
UV
MS
1HNMR
13CNMR
Analytical Method
INSTRUMENT Waters ACQUITY UPLC™ system (Waters Corp., MA, USA)
COLUMN Waters ACQUITY BEH C18 column (50 mm × 2.1 mm, 1.7 μm, Waters Corp., Ireland), 10°C
MOBILE PHASE A: 0.1% formic acid in water, B: acetonitrile containing 0.1% formic acid, 0-0.5 min 50% B, 0.5-3 min 70% B, 3-6 min 70-80% B, 6-9 min 80-95% B, 9-10 min 95% B, 10-11 min 95 to 50% B, 0.3 mL/min
DETECTION UV λ310 nm, Waters Q-TOF Premier (Micromass MS Technologies, Manchester, UK) operating in positive ion mode, nebulization gas: 600 l/h and 300°C, cone gas: 50 l/h, source temperature: 80°C. The capillary voltage: 2700 V, cone voltage: 45 V, collision gas: argon 5.3 × 10−5 Torr.
Reference
[1] Zhou, Y., et al. (2008). "Characterization of polyprenylated xanthones in Garcinia xipshuanbannaensis using liquid chromatography coupled with electrospray ionization quadrupole time-of-flight tandem mass spectrometry." Journal of Chromatography A 1206(2): 131-139.

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