Neurokinin B acetate(86933-75-7 free base) is the acetate form of Neurokinin B, which belongs to the tachykinin family. Neurokinin binds to neurokinin receptor 1 (NK1R), nk2r and NK3R, and mediates its biological effects.

Tyr0-Neurokinin B (Tyr-NKB), an analogue of Neurokinin B, induces contractions in the bladder [1].

Neurokinin B (NKB) belongs in the family of tachykinin peptides. Neurokinin B is implicated in a variety of human functions and pathways such as the secretion of gonadotropin-releasing hormone.

Neurokinin B TFA belongs to the tachykinin family.Neurokinin B binds to a series of GPCR, including neurokinin receptors 1 (NK1R), NK2R, and nk3r, to modulate their biological effects

(D-Pro2,D-Trp6,8,Nle10)-Neurokinin B functions as a competitive antagonist to the Neurokinin B receptor, exhibiting a pA2 value of 5.5. Notably, it does not affect Substance P or Neurokinin A [1].

[MePhe7]-Neurokinin B is a neurokinin NK-3 receptor (NK3R) agonist, exhibiting a potent agonistic activity with an IC50 value of 3 nM. It acts as a potential regulator of pulsatile gonadotropin-releasing hormone (GnRH) secretion through the activation of NK3R [1].

GR 83074 is a potent and selective antagonist of the NK-2 (Neurokinin Receptor), demonstrating a selectivity factor of 340-fold over NK-1, with a pK B value of 8.23. It does not act as an antagonist for NK-3, affirming its specificity [1].