1-Naphthylacetic acid (NAA) yog hom Broad-spectrum cog kev cog kev txhim kho kev tswj hwm, dawb crystalline hmoov, tsis qab. Melting taw tes yog 130 ~ 135.5 ℃, tuaj yeem decomposed los ntawm tshav kub. Nws yog soluble hauv acetone, ether, chloroform, benzene, acetic acid thiab alkali daws.