Tags: Chemical Compound, Chemical Substance.
Indole-3-butyric acid (1H-Indole-3-butanoic acid IBA) is a white to light-yellow crystalline solid with the molecular formula C12H13NO2. It melts at 125 °C in atmospheric pressure and decomposes before boiling. IBA is a plant hormone in the auxin family and is an ingredient in many commercial horticultural plant rooting products.