Structure elucidation of chlorophyll catabolites (phyllobilins) by ESI-mass spectrometry-Pseudo-molecular ions and fragmentation analysis of a nonfluorescent chlorophyll catabolite (NCC)

- Collision-induced dissociation of cationic and anionic species of a tetrapyrrolic chlorophyll catabolite.
- Diagnostic fragmentations are discussed as well as possible mechanisms presented.
- An exceptional decarboxylation reaction involving a deprotonated carboxylic acid and a ketene function that results from the loss of methanol.