Estrone O-sulfamate (Estrone 3-O-sulfamate) 是一种有效的类固醇硫酸酯酶 (STS) 抑制剂。Estrone O-sulfamate 对胎盘微粒体 (P.M.) 制剂和 MCF-7 细胞中的 STS 具有抑制活性，IC50 值分别为 18 nM 和 0.83 nM。Estrone O-sulfamate 可用于癌症的研究。

Potent apelin receptor antagonist (Ki = 82 nM; IC50 = 93 nM). Antagonizes the inhibitory affect of [Pyr1]-Apelin-13 on forskolin-induced cAMP accumulation in CHO-K1-APJ cells. Recuces tumor expansion and lengthens survival time in a mouse xenograft model of glioblastoma.

Fz7-21 TFA ((Ac)-LPSDDLEFWCHVMY-NH2 TFA), a peptide antagonist of Frizzled 7 (FZD 7) receptors, selectively binds to FZD7 CRD subclass. The EC50 values are 58 and 34 nM for human and mouse FZD7 CRD, respectively.