1-Naphthylacetic acid (NAA) ndi mtundu wa zowongolera zokulitsa mbewu, ufa wonyezimira wonyezimira, wopanda vuto. Malo osungunuka ndi 130 ~ 135.5 ℃, amatha kuwonongeka ndi kutentha. Imasungunuka mu acetone, ether, chloroform, benzene, acetic acid ndi mayankho a alkali.