Standard InChI: InChI=1S/C32H38N4O5/c33-27(19-24-13-15-26(38)16-14-24)32(41)36-17-7-12-29(36)31(40)35-28(20-23-10-5-2-6-11-23)30(39)34-25(21-37)18-22-8-3-1-4-9-22/h1-6,8-11,13-16,25,27-29,37-38H,7,12,17-21,33H2,(H,34,39)(H,35,40)/t25-,27-,28-,29-/m0/s1
1.Wang CL, Yao JL, Yu Y, Shao X, Cui Y, Liu HM, Lai LH, Wang R.. (2008) Structure-activity study of endomorphin-2 analogs with C-terminal modifications by NMR spectroscopy and molecular modeling., 16 (12):[PMID:18490168][10.1016/j.bmc.2008.05.001]