Used in research settings for studying neuroinflammation and pain signaling pathways due to its modified structure that enhances stability and receptor specificity. The oxidation of methionine and addition of trifluoroacetate improves peptide resistance to degradation, making it suitable for in vitro and in vivo assays involving Substance P receptors (NK1R). Commonly applied in neuroscience for probing receptor binding dynamics and evaluating potential therapeutic interventions for chronic pain and inflammatory conditions.