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Indole-3-butyric acid
Also known as: 3-Indolebutyric acid, IBA, 1H-Indole-3-butanoic acid
As the most effective auxin-type regulator for promoting root formation, 3-Indolebutyric acid (IBA) offers the key advantage of powerfully inducing adventitious root formation, thereby significantly increasing both the rooting rate and survival rate of plant cuttings. Furthermore, it is resistant to degradation within the plant, provides long-lasting efficacy, and exhibits excellent mobility.

Technical specifications
- Product Name
- Indole-3-butyric acid
- Other Names
- 3-Indolebutyric acid, IBA, 1H-Indole-3-butanoic acid
- Appearance
- White to Off -White Powder
- Assay
- 98%
- CAS No.
- 133-32-4
- Molecular formula
- C12H13NO2
- Molecular weight
- 203.24
Package
25kg Drum
Key benefits
- Potent Root Induction Indole-3-butyric acid (IBA) powerfully induces the formation of adventitious roots, significantly boosting rooting rates and survival rates for plant cuttings.
- Long-lasting Efficacy It resists enzymatic degradation within the plant, exhibits excellent systemic mobility, and provides enduring effects, continuously fueling root system growth.
- Safe and Broad-spectrum Suitable for a wide range of crops and unlikely to cause phytotoxicity, it serves as a safe and stable rooting agent.
Suggested dosage & application
- For Formulators & Manufacturers As a 98% High-Purity Technical Grade auxin, this product must be properly formulated before broad field application. Solubility: IBA 98% TC is practically insoluble in water but highly soluble in organic solvents such as ethanol, methanol, or acetone. It can also be dissolved in alkaline solutions. It is commonly formulated into SP (Soluble Powder), WDGs (Water Dispersible Granules), or Liquid solutions. Formulation Note: IBA is sensitive to light and high temperatures. Final formulations should be packaged in light-proof, opaque containers and stored in cool, dry conditions to prevent premature degradation of the active ingredient.
- Reference Field Application Rates For standard crop management and broad-acre applications via foliar spraying or fertigation, the general field dosage ranges from 5 to 30 g of active ingredient per hectare (g a.i./ha), depending on the plant variety and growth phase. Foliar & Growth Spraying: Apply at 5 – 15 g a.i./ha during early growth or vegetative stages to enhance overall cell division and nutrient uptake. Root Zone Fertigation: Apply at 15 – 30 g a.i./ha to stimulate extensive root branching, maximize root biomass, and improve crop resilience against drought and transplant shock.
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