Indole-3-propionic acid (IPA)Synonyms: 3-(3-Indolyl)propanoic acid, 3-Indolepropionic acidPlant hormone with numerous cell growth functions including cell division, elongation, autonomal loss of leaves, and the formation of buds, roots, flowers, and fruitCompound is inhibited by light, which plays an important role in aiding the plant grow toward light sourcesPlant tissue culture testedAppearance: yellow to orange to brown powderMelting Point: 134-135°CSoluble in ethanol