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. 2016 May 11;6(4):195–204. doi: 10.1007/s13659-016-0101-y

Table 3.

Compounds tentatively identified in pequi peel extract using ESI–MS in the negative ion mode

[M–H] Tentative identification Measured m/z Calculated m/z Error
(ppm)
ESI–MS/MS
C7H5O5 Gallic acid 169.01420 169.01425 −0.30 79, 125
C7H11O6 Quinic acid 191.05600 191.05611 −0.57 85, 93, 127
Brevifolin carboxylic acid fragment 247.02462 191, 219
C13H7O8 Brevifolin carboxylic acid 291.01452 291.01464 −0.41 247, 219, 191
C14H5O8 Ellagic acid 300.99919 300.99899 0.66 145, 284
C13H15O10 Glucogallin 331.06673 331.06707 −1.03 169, 241
C19H13O12 Ellagic acid xyloside 433.04144 433.04125 0.44 301
C20H15O12 Ellagic acid rhamnoside 447.05902 447.05690 4.74 301
C20H15O13 Ellagic acid glucoside 463.05293 463.05181 2.42 301
C27H21O18 Corilagin 633.07152 633.07334 −2.87 301
C41H27O27 Geraniin 951.06917 951.07452 −5.63 301