1-Naphthaleneacetic acid

  • α - naphthalene acetic acid
  • 1- naphthaleneacetic acid
  • 1- Naphthalinethansäure
  • NAA

Colorless to white, odorless solid


134.5 ° C


Very poor in water ( 0.42 g · l-1 at 20 ° C)


Template: Infobox chemical / molecular formula search available

1- naphthylacetic acid is substituted with a naphthyl acetic acid, a carboxylic acid and thus one of the two possible positional isomers of the Naphthylessigsäuren. Like many other aromatic-substituted acetic acids it shows a auxinanaloge action in plants. Therefore, it is used as a synthetic plant hormone.


1- naphthylacetic acid is the same effect as natural auxin indole-3 -acetic acid (IAA ) to the structural relationship is. It is inter alia used in the vegetative propagation of plants, where it serves the main constituent of various Bewurzelungshormone ( " Wurzelfix ") for the propagation of cuttings.