Mosquito larvicidal activity of Cassia tora seed extract and its key anthraquinones aurantio-obtusin and obtusin

Table 1 Retention time and major fragment ions of compounds identified in the seed extract of C. tora

Peak no.	Retention time (min)	Compound name	[M + H]⁺	Major fragments	Reference
1	9.72	Aurantio-obtusin	331.0824	316.0610, 298.0490, 288.0645, 270.0531, 253.0491, 242.0589	[14,15,16,17]
2	10.03	Obtusiolin	285.0766	270.0522, 255.0648, 237.0510, 196.0431, 177.1118, 133.0861	[14,15,16,17]
3	10.14	Chryso-obtusin	359.1142	326.0758, 270.3160, 268.0780, 211.0748, 177.1149, 133.0853	[14,15,16,17]
4	10.65	Obtusin	345.0931	330.0735, 312.0622, 282.0526, 254.0513, 238.0612, 154.0484	[14,15,16,17]

ISSN: 1756-3305