Table 2. HRMS identification data of purified tannins.

No.	Compounds	Rt (min)	Formula [M-H]-	Calculated m/z	Measured m/z	Diff (ppm)
1	Monomer 1	8.20	[C15H14O6-H]-	289.0718	289.0718	0
2	Monomer 2	10.57	[C15H14O6-H]-	289.0718	289.0716	-0.69
3	Dimer 1	7.39	[C30H26O12-H]-	577.1351	577.1341	-1.73
4	Dimer 2	7.61	[C30H26O12-H]-	577.1351	577.1340	-1.91
5	Dimer 3	9.15	[C30H26O12-H]-	577.1351	577.1342	-1.56
6	Dimer 4	9.66	[C30H26O12-H]-	577.1351	577. 1343	-1.39
7	Trimer 1	5.55	[C45H38O18-H]-	865.1985	865.1977	-0.92
8	Trimer 2	6.55	[C45H38O18-H]-	865.1985	865.1985	0.00
9	Trimer 3	9.63	[C45H38O18-H]-	865.1985	865.1997	1.39
10	Tetramer 1	9.47	[C60H50O24-H]-	1153.2619	1153.2589	-2.6
11	Tetramer 2	10.15	[C60H50O24-H]-	1153.2619	1153.2586	-2.86
12	Tetramer 3	10.82	[C60H50O24-H]-	1153.2619	1153.2596	-1.99
13	Tetramer 4	11.10	[C60H50O24-H]-	1153.2619	1153.2584	-3.03
14	Tetramer 5	11.81	[C60H50O24-H]-	1153.2619	1153.2611	-0.69
15	Pentamer 1	2.17	[C75H62O30-H]-	1441.3253	1441.3248	-0.35
16	Pentamer 2	2.29	[C75H62O30-H]-	1441.3253	1441.3239	-0.97
17	Pentamer 3	2.70	[C75H62O30-H]-	1441.3253	1441.3258	0.35
18	Pentamer 4	4.13	[C75H62O30-H]-	1441.3253	1441.3201	-3.61
19	Pentamer 5	4.82	[C75H62O30-H]-	1441.3253	1441.3254	0.07