95.5
[1]. Timo Stark, et al. Structures, sensory activity, and dose/response functions of 2,5-diketopiperazines in roasted cocoa nibs (Theobroma cacao). J Agric Food Chem. 2005 Sep 7;5(18):7222-1.
H15-H19-H5
P261-P26-P271-P280-P02+P52-P0+P0-P62+P6-P05-P501