Characterization of coumarins from Ipomoea mauritiana Jacq by LC-APCI-MS/MS analysis and evaluation of its anti-amnesic activity

Beni-Suef University Journal of Basic and Applied Sciences

Table 1 APCI-LC-MS/MS analysis of coumarin fraction of IM

Sl No	m/z [M + H]	MS/MS	Molecular formula	Tentative identification	Present in
1	193.0566	133.03	C₁₀H₈O₄	7-hydroxy-6-methoxy coumarin	Fr-1 and Fr-2
2	163.0441	107.05	C₉H₆O₃	7-hydroxycoumarin	Fr-2
3	217.0593	202.02	C₁₂H₈O₄	5-methoxy-6,7-furanocoumarin	Fr-2
4	207.18	151.2	C₁₁H₁₀O₄	5,7-dimethoxycoumarin	Fr-2
5	269.1580	152.21	C₁₆H₁₇O₈	6-hydroxy-7-methoxy-4-phenylcoumarin	Fr-2