(min)UV maximum (nm) (M–H)−
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Fragments (MS/MS)
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Tentative structural assignment 1 4.7 222, 271 169.01 125.02 Gallic acid 2 13.0 220, 225 (sh), 280, 320 311.04 179.04, 149.01, 135.05 Caffeic acid pentose ester 3 14.1 218, 230 (sh), 280, 325 311.04 179.04, 149.01, 135.05 Caffeic acid pentose ester 4 15.1 205, 225 (sh), 280 577.14 425.09, 407.08, 289.07, 245.08, 125.03 Procyanidin dimer (epi/catechin dimer) 5 16.4 205, 230 (sh), 280 (sh), 315 (sh) 295.05 163.04, 149.01, 119.05 Coumaric acid pentose ester 6 17.4 205, 225 (sh), 280 865.21 407.08, 289.07, 125.03 Procyanidin trimer (epi/catechin trimer) 7 17.7 220, 280 729.16 407.08, 289.07, 245.08, 169.02, 125.03 Procyanidin dimer gallate 8 18.2 200, 260, 355 615.11 463.09, 301.04, 300.03, 271.03, 255.03, 179.00, 151.01, 169.02, 125.03 Quercetin 3-O-hexoside gallate 9 18.5 210, 250, 356 609.16 301.04, 300.03, 271.02, 255.03, 179.00, 151.01 Rutin: Quercetin 3-O-rhamnosyl (1→6) hexoside 10 19.4 210, 278 441.09 289.07, 245.08, 169.02, 125.03 Epicatechin gallate 11 19.6 200, 260, 355 463.09 301.04, 300.03, 271.02, 255.03, 179.00, 151.00 Quercetin 3-O-hexoside 12 21.1 200, 265, 345 599.11 447.10, 285.04, 284.03, 255.03, 227.04, 169.02, 125.03 Kaempferol 3-O-galloyl hexoside 13 22.0 200, 265, 345 447.10 285.04, 284.03, 255.03, 227.04 Kaempferol 3-O-hexoside 14 28.4 220, 290 (sh), 318 441.09 295.05, 277.04, 163.04, 145.03, 119.05 Dicoumaroyl pentose 15 29.0 220, 290 (sh), 315 441.09 295.05, 277.04, 163.04, 145.03, 119.05 Dicoumaroyl pentose