The molecule is a member of the class of pheophorbides ontained by formal epoxidation of pheophorbide a. It is a pheophorbide and an epoxide. It derives from a pheophorbide a. It is a conjugate acid of an epoxypheophorbide a(1-).
3-[(8Z,14R,17S,18S,19Z)-23-ethenyl-6-ethyl-14-methoxycarbonyl-5,18,22,26-tetramethyl-13-oxo-2-oxa-10,24,25,27-tetrazaheptacyclo[19.2.1.14,7.19,12.116,19.01,3.011,15]heptacosa-4,6,8,11(15),12(26),16(25),19,21(24),22-nonaen-17-yl]propanoic acid