Phytochemical Composition of Solanum retroflexum Analysed with the Aid of Ultra-Performance Liquid Chromatography Hyphenated to Quadrupole-Time-of-Flight Mass Spectrometry (UPLC-qTOF-MS)

Table 1

Compounds identified with UHPLC in Solanum retroflexum leaf aqueous methanol extracts.

Mol. no.	Retention time (min)	Mass	Compound name	Diagnostic m/z ions
1	9.8	353	3-CQA	191, 179, 135
2	5.6	353	trans-4-CQA	191, 135, 173, 179
3	5.1	353	trans-5-CQA	191, 135
4	6.0	353	cis-4-CQA	191, 135, 173, 179
5	5.9	353	cis-5-CQA	191, 135
6	6.5	355	Feruroylglycoside	160,175
7	5.3	515	trans-5-CQA glycoside	191, 135
8	6.4	515	cis-5-CQA glycoside	191, 135
9	8.9	515	3, 4-di CQA	191, 179, 173, 135
10	9.1	515	cis-3, 5-di-CQA	191, 179, 135
11	9.3	515	trans-3, 5-di-CQA	191, 179, 135
12	9.5	515	trans-4, 5-di-CQA	191, 179, 135
13	10.5	515	cis-4, 5-di-CQA	191, 179, 135
14	5.3	337	3-p-CoQA	177
15	6.8	337	trans-5-p-CoQA	191
16	7.5	337	cis-5-p-CoQA	191
17	8.7	339	Coumaroyl-hexose	223, 164, 149
18	7.4	337	4-p-CoQA	173
19	7.4	367	trans-5-FQA	191
20	8.0	367	cis-5-FQA	191
21	10.7	367	4-FQA	173
22	10.3	367	3-FQA	193, 134
23	8.1	609	Quercetin-3-rutinoside	300
24	9.1	447	Kaempferol-3-glucoside	284
25	8.4	463	Quercetin-7-glucoside	300
26	8.8	593	Kaempferol-3-0-rutinoside	285
27	9.0	623	Isorhamnetin-3-0-rutinoside	315
28	8.7	447	Quercetin-3-rhamnoside	300
29	20.3	884	Solasonine	722, 576, 414
30	20.1	868	Solamargine	722, 576, 414

Note. CQA, caffeoylquinic acid; di-CQA, di-caffeoylquinic acid; -CoQA, -coumaroylquinic acid; FQA, feruloyquinic acids; mol no., molecule number; min, minutes; m/z, mass-to-charge ratio; DNP, dictionary of natural products 2015 [37]; KMI, KNApSAcK Metabolites Information 2015 [38].