Mass spectral studies on prostaglandins. IV--Prostaglandin F2alpha

The mass spectroscopic behaviour of prostaglandin F2alpha and its methyl ester has been studied. Mechanisms are suggested for the formation of the prominent ions in the spectra of these compounds. The proposed fragmentation pathways have been confirmed with the aid of low electron voltage spectra, measurements on metastable ion decompositions, high resolution mass measurements and deuterium labelling.