1-Cyclopentene-1-heptanoic acid, 4-(1-((2-(6-carboxyhexyl)-3-oxo-1-cyclopenten-1-yl)methyl)-3,3-dimethyl-2-oxoheptyl)-2-(4,4-dimethyl-3-oxo-1-octenyl)-5-oxo- 135608-06-9 16,16'-Dimethyl prostaglandin B1 dimer di-Calciphor