Table 1.

Putative identification of main components of P. niruri’s active fraction

Plant fraction	Rt.time (min)	λ (nm)	Molecular weight	[M + H] m/z	MS/MS fragmentation	Tentative identification	Molecular formula
PNF1	4.437	221, 280	355	356	340, 191, 165 , 151, 147	4-O-Caffeolquinic acid	C16H18O9
	7.92	225	448	430	303, 219, 205, 165	Quercetin3-O-rhamnoside	C21H20O11