Oxidative Medicine and Cellular Longevity / 2021 / Article / Tab 1 / Research Article
Antiepileptic Effects of Cicadae Periostracum on Mice and Its Antiapoptotic Effects in H2 O2 -Stimulated PC12 Cells via Regulation of PI3K/Akt/Nrf2 Signaling Pathways Table 1 Precursor and product ions of constituents in Cicadae Periostracum.
No. Compound name Molecular formula [M-H]- [M+H]+ MS/MS (m/z) 1 4-Guanidinobutyric acid 1.75 C5 H11 N3 O2 146.0924 128.0820 [M+H-H2 O]+ 3 ] + 2 L-Valine 1.93 C5 H11 NO2 118.0866 3 DL-Norleucine 2.12 C6 H13 NO2 132.1021 4 2-Phenylglycine 3.28 C8 H9 NO2 152.0705 134.0602 [M+H-H2 O]+ 3 ] + 5 L-Phenylalanine 4.77 C9 H11 NO2 166.0862 6 3-Hydroxymandelic acid 6.34 C8 H8 O4 167.0343 335.0773 [2M-H]- 7 Catechol 7.04 C6 H6 O2 109.0286 8 N-Acetyldopamine 8.53 C10 H13 NO3 196.0968 391.1862 [2M+H]+ 9 Protocatechualdehyde 9.34 C7 H6 O3 137.0237 10 4-Nitrocatechol 13.30 C6 H5 NO4 154.0141 11 N-Acetyldopamine dimer 17.06 C20 H22 N2 O6 387.1562 328.1182; 269.0821; 194.0811; 192.0653 12 N-Acetyldopamine dimers 18.00 C20 H22 N2 O6 387.1558 328.1178; 269.0813; 194.0808; 192.0649 13 N-Acetyldopamine dimers 19.10 C20 H22 N2 O6 387.1556 328.1180; 269.0819; 194.0811; 192.0654 14 N-Acetyldopamine trimer 22.33 C30 H31 N3 O9 578.2147 192.0658; 150.0554 15 N-Acetyldopamine trimers 23.06 C30 H31 N3 O9 578.2144 192.0661; 150.0559 16 N-Acetyldopamine tetramers 25.54 C40 H40 N4 O12 769.2725 192.0664; 150.0563
