Table 1.

Tentative Identification of Chemical Profile of Aqueous Extract of J. officinale Leaves by HPLC-PDA-MS/MS in the Negative Ion Mode

No	Rt (min)	[M-H]	MS/MS	UV	Identified Compound	Reference
1	9.74	461	299	277	salidroside hexoside	[27]
2	10.22	315	153,137	276	hydroxytyrosol hexoside	[28]
3	10.64	299	137	276	salidroside	[27]
4	11.27	153	137	276	hydroxytyrosol	[28]
5	12.22	153	109	285	protocatechuic acid	[29]
6	12.92	353	191, 179	218,298	chlorogenic acid	[30]
7	13.7	137	119, 93	277	tyrosol	[31]
8	15.43	137	93	280,310	p-hydroxy benzoic acid	[32]
9	15.71	325	163	288	p-coumaroyl hexoside	[33]
10	18.63	353	191, 179	n.d.	caffeoyl quinic acid	[33]
11	19.05	565	403	229	oleoside methyl ester hexoside	[34]
12	20.09	473	311, 179	296,312	caftaric acid hexoside	[35]
13	22.65	387	225, 223	290	dihydrosinapic acid hexoside	[36]
14	23.47	359	197, 154	295	syringic acid hexoside	[37]
15	24.72	197	171, 153	283	syringic acid	[37]
16	25.06	163	119	280	p-coumaric acid	[38]
17	25.62	359	197,179,161	312,360	rosmarinic acid	[39]
18	27.76	609	463, 301	256,358	quercetin deoxyhexosyl hexoside	[40]
19	27.83	537	447,375,179	226,286	hydroxylariciresinol hexoside	[41]
20	28.92	717	555	222,268	hydroxy oleuropein hexoside	[42]
21	30.59	525	363, 307	228,276	demethyl oleuropein	[43]
22	31.27	593	447, 285	255,347	kaempferol deoxyhexosyl hexoside	[44]
23	32.49	609	447, 301	256,356	quercetin hexosyl deoxyhexoside	[45]
24	33.38	463	301	256,359	quercetin hexoside	[40]
25	33.57	697	535, 373,191	n.d.	hydroxypinoresinol dihexoside	[46]
26	34.30	447	285	256,342	kaempferol hexoside	[47]
27	35.26	623	461, 315	255,333	isorhamnetin hexosyl deoxyhexoside	[48]
28	36.34	509	347, 233	232,377	demethyl ligstroside	[49]
29	36.99	863	701, 347	231,277	oleuropein dihexoside	[50]
30	38.34	685	523,361,259	230,277	ligstroside hexoside	[33]
31	38.69	565	403, 385	233,278	jaslanceoside D	[51]
32	39.36	835	401, 223	233,279	jaslanceoside F	[51]
33	40.66	553	391, 221	232	shanzhiside hexoside	[52]
34	41.09	1171	1009, 403	231	jasnervoside A	[53]
35	41.5	653	521	218,288	methoxy verbascoside	[54]
36	44.03	393	375, 343	232	jasmolactone B	[55]
37	44.11	539	377, 307	231,277	oleuropein	[56]
38	45.05	535	389,163	230,282	coumaroyl oleoside	[57]
39	46.91	569	537,389	232,278	methoxy oleuropein	[43]
40	47.86	627	465, 301	280,348	quercetin coumaroyl hexoside	[58]
41	49.91	975	813, 539,403	233	molihauside A	[59]
42	50.68	1077	909,389,179	231,282	caffeoyl jasnervoside B	[60]
43	53.45	941	909, 555	229	jaspogeranoside A	[61]
44	54.80	925	539,403	231	isojaspolyanoside B	[62]
45	55.83	377	307, 223	231,277	oleuropein aglycone	[63]
46	57.63	925	893,539,521	229	jaspolyoside	[64]
47	61.77	909	523,223	229	jaspolyanoside	[65]
48	63.15	945	727,595,389	230	jaspogeranoside B	[61]
49	65.74	571	539	228	deacyl jaspofoliamoside E	[66]
50	68.05	957	571,223	230	jasamplexoside B	[67]
51	71.29	1079	833, 539	231	jasnervoside D	[68]

Abbreviations: R_t, retention time; n.d., not detected.