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Table 1 Peak assignments for the analysis of SCBPE

From: Schisandra chinensis bee pollen’s chemical profiles and protective effect against H2O2-induced apoptosis in H9c2 cardiomyocytes

Peak No. tR (min) Identification (+) ESI-MS m/z (−) ESI-MS m/z DBE Formula
Observed Calculated (Δppm) Observed Calculated (Δppm)   
1 1.239 Gluconic acid    195.05159 195.05103 (−2.89) 1 C6H12O7
2 1.355 Sucrose a [M + Na]+  365.10556 365.10543 (0.36) 341.11044 341.10894 (−4.41) 2 C12H22O11
3 2.003 Uridine a [M + Na]+  267.05951 267.05876 (2.81) 243.06264 243.06226 (−1.56) 5 C9H12N2O6
4 2.570 Adenosine a 268.10476 268.10403 (2.71) 266.08973 266.08948 (−0.94) 7 C10H13N5O4
5 3.130 Guanosine a 284.10797 284.11018 (−7.78) 282.08436 282.08439 (0.11) 7 C10H13N5O5
6 12.366 Caffeoyl-feruloylquinic acid or caffeoyl-isoferuloylquinic acid nitrogen-containing derivative 706.29816 706.29704 (1.60) 704.28380 704.28249 (1.86) 18 C37H43N3O11
7 12.714 Caffeoyl-feruloylquinic acid or caffeoyl-isoferuloylquinic acid nitrogen-containing derivative 706.29697 706.29704 (−0.09) 704.28298 704.28249 (0.70) 18 C37H43N3O11
8 12.797 Caffeoyl-3′-methoxycinnamylquinic acid or caffeoyl-4′-methoxycinnamylquinic acid nitrogen-containing derivative 690.30371 690.30212 (2.30) 688.28736 688.28757 (−0.31) 18 C37H43N3O10
9 12.979 Caffeoyl-feruloylquinic acid or caffeoyl-isoferuloylquinic acid nitrogen-containing derivative 706.29629 706.29704 (−1.06) 704.28123 704.28249 (−1.79) 18 C37H43N3O11
10 13.079 Caffeoyl-3′-methoxycinnamylquinic acid or caffeoyl-4′-methoxycinnamylquinic acid nitrogen-containing derivative 690.29517 690.30212 (−10.07) 688.28813 688.28757 (0.81) 18 C37H43N3O10
11 13.178 p (or m)-Coumaroyl-3′-methoxycinnamylquinic acid or p (or m)-coumaroyl-4′-methoxycinnamylquinic acid nitrogen-containing derivative 674.30984 674.30721 (3.90) 672.29420 672.29266 (2.29) 18 C37H43N3O9
12 13.277 Caffeoyl-3′-methoxycinnamylquinic acid or caffeoyl-4′-methoxycinnamylquinic acid nitrogen-containing derivative 690.30160 690.30212 (−0.75) 688.28800 688.28757 (0.63) 18 C37H43N3O10
13 13.244 p (or m)-Coumaroyl-3′-methoxycinnamylquinic acid or p (or m)-coumaroyl-4′-methoxycinnamylquinic acid nitrogen-containing derivative 674.30817 674.30721 (1.42) 672.29314 672.29266 (0.71) 18 C37H43N3O9
14 13.526 p (or m)-Coumaroyl-3′-methoxycinnamylquinic acid or p (or m)-coumaroyl-4′-methoxycinnamylquinic acid nitrogen-containing derivative 674.30941 674.30721 (3.26) 672.29376 672.29266 (1.64) 18 C37H43N3O9
  1. acompared with standard compounds