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Table 2 Tentative identification of compounds detected from CGEEA-F5–8 by LC-MS/MS using on-line ChemSpider database (http://www.chemspider.com) and Reaxys database (https://www.reaxys.com)

From: Discovery, synthesis and antibacterial evaluation of phenolic compounds from Cylicodiscus gabunensis

RT (min) Molecular Formula Molecular mass Found [M + H]+ m/z Name of compound Chemical structure Reference
2.36 C7H6O5 170.0214 171.0287 Gallic acid (1) [16]
2.36 C9H10O5 198.0528 199.0603 Ethyl gallate (6) [16]
3.07 C20H22O9 406.1265 407.1338 Trans-3,5,3′,4′-tetrahydroxystilbene-3-O-β-D-glucopyranoside [23]
3.44 C22H26O13 498.1373 499.1446 3,4,5-Trimethoxyphenyl 6-O-(3,4,5-trihydroxybenzoyl)-β-D-glucopyranoside [24]
3.45 C22H18O8 410.1001 411.1074 3-(4-Hydroxybenzoyl)epicatechin [25]
3.68 C37H30O14 698.1639 699.1713 Epicatechin-(4β → 8)-catechin-3-O-(4-hydroxy)benzoate [26]
3.72 C37H30O15 714.1585 715.1658 Epiafzelechin-(4β → 8)- epicatechin-3-O-gallate [27]
3.86 C45H38O16 834.2151 835.2223 Procyanidin C-1 [28]
3.67 C45H38O17 850.2104 851.2177 Epicatechin--(4β → 8)-epicatechin--(4β → 8)-catechin trimer [29]