Spantide I, a substance P analog, is a selective NK1 receptor antagonist, with Ki values of 230 nM and 8150 nM for NK1 and NK2 receptor, respectively. Spantide I provides an approach to reduce type 1 and enhance the type 2 cytokine IL-10 in the infected cornea, leading to a significant reduction in corneal perforation.

RF-amide peptide, Drosophila

Benzophenonetetracarboxylic acid (3,3',4,4'-Benzophenonetetracarboxylic acid) is utilized in the preparation of high-performance polyimides and serves as a curing agent for epoxy resins.