Provided are: a compound that thickens or gelatinizes a fluid organic substance to a desired viscosity, or uniformly stabilizes a composition containing the fluid organic substance； a thickening/stabilizing agent including the compound； a thickened/stabilized composition including the thickening/stabilizing agent and a fluid organic substance； and a method for producing a thickened/stabilized composition. The compound according to the present invention is represented by Formula (1):(R2—HNOC)4-n—R1—(CONH—R3)n (1)where R1 is a group resulting from removing four hydrogen atoms from the structural formula of benzene； R2 and R3 are different from each other and are each independently an aliphatic hydrocarbon group having 6 or more carbon atoms； and n represents an integer of 1 to 3.
