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. Author manuscript; available in PMC: 2014 Apr 2.
Published in final edited form as: J Alzheimers Dis. 2014;40(2):359–373. doi: 10.3233/JAD-131913

Figure 4.

Figure 4

Caffeoylquinic acids are present in CAW. A) The presence of several caffeoylquinic acids was confirmed by comparing the LC-MS trace for CAW to that of a solution containing standards for each CQA. B) The relative peak heights obtained by selected reaction monitoring (SRM) of the 535 to 191, and 515 to 353 transitions using LC-MS/MS differed for the isomeric dicaffeoylquinic acids. This was used to verify the presence of 1,5-dicaffeoylquinic acid and Isochlorogenic acid A in CAW. C) The % composition of each CQA in the CAW mixture was determined from LC-UV analysis at 330nm. D) The chemical structures of the eight CQAs comprising both monocaffeoylquinic and dicaffeoylquinic acids. The chemical nomenclature is given in brackets when the common name was used.