ʻO 1-Naphthylacetic acid (NAA) kahi ʻano o nā mea hoʻokele ulu mea kanu Broad-spectrum, pauka crystalline keʻokeʻo, ʻono ʻole. ʻO ke kiko hoʻoheheʻe he 130 ~ 135.5 ℃, hiki ke hoʻopau ʻia e ka wela. Hiki ke hoʻoheheʻe ʻia i ka acetone, ether, chloroform, benzene, acetic acid a me nā haʻina alkali.