We report herein the isolation and complete characterization of a member of the chlorophyll c family, designated as [8-ethyl]-chlorophyll c3 ([8-ethyl]-chl c3). Structural elucidation of this pigment rested on the analysis of mono- and bidimensional NMR, UV-VIS spectroscopy and ESI-MS data, and the configuration at the 132 position on chiral HPLC analysis.
![Graphical abstract: Characterization of [8-ethyl]-chlorophyll c3 from Emiliania huxleyi](http://hg.y866.cn/compound/lib/scimg/usr/1/C2CC31329D.jpg)
