3-Indoleacetic Acid
3-Indoleacetic Acid

1.Name: 3-Indoleacetic acid

2. CAS No: 87-51-4

3.Molecular formula:C10H9NO2

4.Molecular weight: 175.18

5. Structural formula:


Product Overview

3-Indoleacetic acid 

Product Information

1. Appearance:Off White crystalline powder

2. Usage: 3-Indoleacetic acid is a plant growth regulator, it can promote cell division, accelerate root formation, increase fruit setting and prevent fruit drop

3.Customerized packing label

4.Professional registration GLP,ICAMA,LOA etc.

5.FAO standard


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What Our Customers Say About 3-Indoleacetic Acid (IAA)

What Our Customers Say About 3-Indoleacetic Acid (IAA)

  • James
    James
    This natural auxin has dramatically improved our cutting propagation success rates. Treated cuttings root faster and more uniformly.
  • William
    William
    In our tissue culture operation, it's enhanced adventitious root formation. The plantlets establish more vigorously after transplanting.
  • Benjamin
    Benjamin
    For young transplants, it's promoted cell elongation resulting in stronger, more vigorous seedlings that withstand field conditions better.
  • Alexander
    Alexander
    When combined with other rooting hormones, we get synergistic effects that further improve our propagation results.
3-Indoleacetic Acid (IAA) FAQs

3-Indoleacetic Acid (IAA) FAQs

As a basic producer and leading formulator in agrochemicals, We have rich experience in domestic market, and we have professional technical team can help clients to find the solutions for the new disease who threatens their crop.
  • 80%
    High Purity
    Ensure the reliability of each product.
  • 58%
    Fast-Acting Formula
    Quickly provide visible effects
  • What are the natural roles of IAA in plant physiology?

    What are the natural roles of IAA in plant physiology?

    As the primary endogenous auxin, IAA regulates phototropism, gravitropism, apical dominance, and vascular differentiation. In agriculture, synthetic IAA applications mimic these natural processes to stimulate adventitious root formation, enhance graft union success, and improve stress recovery in transplanted seedlings.

  • How is IAA typically applied in horticultural practices?

    How is IAA typically applied in horticultural practices?

    Common methods include rooting hormone dips (500-1500 ppm for cuttings), foliar sprays (10-100 ppm for stress mitigation), and tissue culture media supplementation (0.1-5 mg/L). Seed treatments (1-10 ppm) improve germination uniformity in hard-to-sprout species.

  • What plant propagation benefits does IAA provide?

    What plant propagation benefits does IAA provide?

    It increases rooting percentages (by 30-70% depending on species), accelerates root initiation timing (by 5-10 days), and enhances root system architecture with more fibrous secondary roots compared to untreated controls - critical for successful transplant establishment.

  • How does IAA concentration affect plant responses?

    How does IAA concentration affect plant responses?

    Responses follow a strict dose curve: low concentrations (0.1-1 ppm) stimulate root initiation, moderate levels (1-10 ppm) promote cell elongation, while high doses (>50 ppm) inhibit growth and may induce ethylene-related stress responses. Optimal rates vary dramatically between species and even cultivars.

  • How does IAA interact with other phytohormones?

    How does IAA interact with other phytohormones?

    It exhibits complex crosstalk - synergistic with cytokinins for callus induction but antagonistic for shoot/root determination. Balanced ratios with abscisic acid regulate stress responses, while ethylene biosynthesis often follows IAA application peaks.

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