Evidence-Based Complementary and Alternative Medicine

Research Article

Rabdosia japonica var. glaucocalyx Flavonoids Fraction Attenuates Lipopolysaccharide-Induced Acute Lung Injury in Mice

Characteristics of chemical components of RJFs by UHPLC-Q-TOF-MS.


Peaks number	Retention time (min)	Mass ions (/)	Molecular formula	Identification

1	3.104	198.0755 [M + H₂O]⁺	C₉H₈O₄	Caffeic acid
2	4.731	351.1248 [M + H]⁺	C₂₀H₃₀O₅	RabdoloxinB
3	5.882	434.2496 [M + 2H]⁺	C₂₁H₂₀O₁₀	Vitexin
4	5.915	451.2321 [M + H + H₂O]⁺	C₂₁H₂₀O₁₀	Isovitexin
5	6.240	437.1120 [M + H–CO]⁺	C₂₁H₂₀O₁₂	Isoquercitrin
6	6.374	317.2116 [M–H]⁺	C₁₅H₁₀O₈	Myricetin
7	6.691	283.7185 [M–H]⁺	C₁₆H₁₂O₅	Baicalein-methylether
8	7.525	340.2600 [M–H + Na]⁺	C₁₅H₁₀O₈	Quercetagetin
9	7.859	351.2127 [M + H]⁺	C₂₀H₃₀O₅	Kamebakaurin
10	7.975	745.3335 [2M + Na]⁺	C₁₈H₁₆O₇	Methyl-6-dehydroxyl rosmarinate
11	8.125	396.8057 [M + Na–H]⁺	C₁₉H₁₈O₈	Methyl rosmarinate
12	8.317	426.2526 [M + H + Na]⁺	C₂₀H₁₈O₉	Apigenin-7-arabinoside
13	9.293	285.1869 [M–H]⁺	C₁₅H₁₀O₆	Luteolin
14	10.277	333.2062 [M + H]⁺	C₂₀H₂₈O₄	Glaucocalyxin A
15	10.611	785.4507 [2M–H + 2HCOONa + 2Na]⁺	C₁₅H₁₀O₇	Quercetin