A Sec7 domain-binding selective antagonist against cytohesin family small GEFs. SecinH3 inhibits large GEFs only at much higher concentrations and is shown to effectively inhibit insulin signaling. Alternative name: N-(4-(5-(1,3-Benzodioxol-5-yl)-3-methoxy-1H-1,2,4-triazol-1-yl)phenyl)-2-(phenylthio)acetamide, Cytohesin inhibitor I. Purity: ≥99% (HPLC). Solubility: Soluble in DMSO or ethanol. Long Term Storage: -80°C.