CAS 133413-70-4: (3S,6R,9S,12R,15S,18R,21S,24R)-6,18-dibenzyl-4,10,12,16,22,24-hexamethyl-3,9,15,21-tetrakis(2-methylpropyl)-1,7,13,19-tetraoxa-4,10,16,22-tetraazacyclotetracosane-2,5,8,11,14,17,20,23-octone

PF 1022A is an N-methylated cyclooctadepsipeptides with strong anthelmintic properties. It also acts as an ionosphere.

PF 1022A is a cyclooctadepsipeptide, which is a type of cyclic peptide composed of amino acids and hydroxy acids. It is derived from the fermentation products of the fungus *Mycelia sterilia*, a member of the *Rosellinia* genus. Its mode of action involves disrupting glutamate-gated chloride channels in parasitic nematodes, which leads to paralysis and eventual death of the parasite. PF 1022A is primarily used for its anthelmintic properties, making it useful for controlling parasitic worm infections in animals. The compound's ability to selectively target nematodes without significant harm to the host organism makes it a valuable tool in veterinary medicine. It serves as a key component in formulations designed to combat gastrointestinal nematodes in livestock and pets, contributing to enhanced health and productivity in affected animals. Research into PF 1022A continues to explore its full potential and further applications in parasitology.