Product Introduction
| Item | Specification |
| Product Name | Indole-3-acetic Acid (IAA) |
| Synonyms | IAA; 3-Indoleacetic acid; 2-(1H-Indol-3-yl)acetic acid; Heteroauxin |
| CAS Number | 87-51-4 |
| Molecular Formula | C₁₀H₉NO₂ |
| Molecular Weight | 175.18 g/mol |
| Appearance | White to pale yellow crystalline powder, odorless or slight peculiar smell, stable crystal form at room temperature and dark environment |
| Purity (HPLC) | ≥98.0% / ≥99.0% (Agricultural Grade / Research Grade / Biotech Grade, customizable) |
| Loss on Drying | ≤ 0.2% |
| Residue on Ignition | ≤ 0.1% |
| Testing Method | HPLC / NMR / Mass Spectrometry / IR Spectrum / Biological Activity Detection |
| Production Method | Indole Synthetic Derivatization & Multi-Stage Purification & Low-Temperature Recrystallization |
| Melting Point | 168–170°C (lit.) |
| Boiling Point | 415.2°C at 760 mmHg |
| Density | 1.345 g/cm³ at 25°C |
| Flash Point | 204.9°C |
| Solubility | Slightly soluble in water, freely soluble in ethanol, methanol, acetone and polar organic solvents, soluble in alkaline solutions, sensitive to strong light and high temperature |
| Core Feature | Natural auxin plant growth regulator, downstream metabolite of Tryptophan, stable indole carboxylic acid structure, efficient plant cell growth and differentiation promoting activity |
| Package | 10g/100g sealed amber bottle, 1kg/5kg drum; vacuum moisture-proof packaging, custom specification available |
| Storage | Store in vacuum-sealed, low-temperature, dark and dry conditions; avoid strong light, high temperature and alkaline environment to prevent decomposition and activity loss |
| Shelf Life | 24 months under standard low-temperature sealed storage |
Product Description
Our Indole-3-acetic Acid (IAA) is a high-purity natural auxin plant growth regulator with stable indole carboxylic acid molecular structure and complete biological activity, available in agricultural grade, biotech grade and high-precision research grade. Indole-3-acetic Acid (CAS 87-51-4) is the most classic and physiologically active endogenous auxin in plants, which is naturally synthesized through the Tryptophan metabolic pathway. As an important indole derivative, it is closely related to the previously mentioned Tryptophan, Serotonin and Melatonin in biochemical structure, forming a complete indole metabolism system, but it is uniquely positioned in plant growth regulation, tissue culture induction, agricultural cultivation optimization and indole heterocyclic derivative synthesis. As a professional bulk IAA supplier, we provide low-impurity, high-activity, batch-stable Indole-3-acetic Acid monomers for global botanical research institutions, agricultural technology enterprises and biochemical synthesis laboratories.
Indole-3-acetic Acid occupies a core foundational position in plant physiology, agricultural biotechnology and fine chemical research. As the primary endogenous auxin, IAA widely participates in regulating plant cell elongation, division, tissue differentiation and organ development. It effectively promotes adventitious root formation, accelerates callus growth, controls apical dominance, and mediates plant phototropism and gravitropism responses. In plant tissue culture, IAA serves as a key induced hormone for somatic embryogenesis, organ regeneration and seedling cultivation, which directly affects the differentiation efficiency and survival rate of plant explants. In agricultural production, it improves crop rooting ability, enhances stress resistance, and optimizes growth and development rhythm to increase yield and quality. In fine chemical synthesis, its active indole ring and carboxylic acid functional groups provide efficient modification sites, supporting the development of plant growth regulators, pesticide intermediates and indole-based bioactive molecules. Compared with low-purity IAA products with decomposed impurities and unstable activity, our high-purity purified product eliminates synthetic residues and invalid by-products, ensuring single-component purity and stable physiological induction activity for accurate and repeatable botanical experimental results and consistent agricultural application effects.
Manufactured by Shaanxi BAISFU Bio-Engineering Co., Ltd., our premium Indole-3-acetic Acid adopts advanced indole precision derivatization synthesis combined with low-temperature oxygen-free reaction and multi-stage gradient recrystallization purification process. The entire production process strictly controls reaction temperature, pH value and purification gradient, completely removing unreacted indole raw materials, solvent residues and thermal decomposition impurities. By avoiding high-temperature-induced molecular structure damage and biological activity attenuation, the production process fully retains the complete indole carboxylic acid active skeleton and efficient auxin physiological activity of IAA. The finished product presents uniform white to pale yellow crystalline powder, stable crystal form, no caking, no discoloration and no deterioration, fully complying with high-standard plant research grade, biotech experimental grade and agricultural production grade quality requirements.
Every batch of Indole-3-acetic Acid undergoes strict multi-dimensional quality inspection, including HPLC high-precision purity analysis, NMR structural verification, mass spectrometry molecular identification and plant biological activity testing. It ensures zero invalid impurity interference, ultra-low trace residues and consistent batch activity, providing reliable raw material guarantee for plant tissue culture experiments, agricultural growth regulation and indole derivative synthesis. The product features stable solubility in polar organic solvents and alkaline buffer systems, excellent biological induction activity and wide plant adaptability, fully meeting the strict raw material requirements of laboratory scientific research, pilot-scale cultivation and large-scale agricultural production.
We maintain sufficient low-temperature inventory and complete qualification documents for bulk Indole-3-acetic Acid supply. Whether you need standard auxin hormone monomers for plant physiology research, core induction reagents for tissue culture experiments, or high-purity indole intermediates for custom bio-chemical derivation, our premium IAA is a high-cost-performance and high-value biological fine chemical product choice for global buyers.
Functions & Benefits
Core Endogenous Auxin Growth-Promoting Activity (Core Benefit)
Indole-3-acetic Acid is the most physiologically active natural auxin, which can effectively stimulate plant cell elongation and division, promote root system development and adventitious root differentiation, and regulate plant vegetative growth and reproductive development. It is the most fundamental and essential growth regulator in botanical research and agricultural cultivation.
Key Downstream Metabolite of Tryptophan
Consistent with the human indole metabolic axis of Tryptophan-Serotonin-Melatonin, IAA is a critical downstream indole metabolite in plant metabolic systems. It supports systematic research on indole biochemical metabolism, realizes cross-reference of animal and plant indole pathway mechanisms, and enriches the application scenarios of indole compound research.
Efficient Plant Tissue Culture Induction Performance
High-purity IAA has stable hormone induction activity, which can effectively induce plant callus formation, somatic embryogenesis and organ regeneration. It improves the differentiation rate and seedling survival rate of explants, and is the preferred core hormone for plant cell engineering and tissue culture experiments.
Low-Decomposition Purification & Ultra-Stable Activity
Our Indole-3-acetic Acid adopts low-temperature oxygen-free purification technology to remove photolysis and thermal decomposition impurities. It solves the problem of easy inactivation of conventional IAA products under light and high temperature, maintaining long-term stable auxin activity and experimental repeatability.
Strict Batch Consistency & Wide Adaptability
Synthesized and recrystallized under constant low-temperature sterile conditions, IAA eliminates process quality fluctuations. The product has uniform crystal form, stable molecular structure and consistent biological efficacy, suitable for long-term plant research projects and large-scale standardized agricultural planting applications.
Excellent Solubility & Formula Compatibility
IAA has good solubility in common polar organic solvents and dilute alkaline solutions, easy to prepare into culture medium solutions and agricultural regulators. It maintains stable activity in conventional plant culture systems, perfectly adapting to laboratory experiments and field production scenarios.
Applications
Plant Physiology & Botanical Mechanism Research
Used as a standard high-purity auxin monomer for studying plant growth and development mechanisms, phototropism and gravitropism regulation, apical dominance and stress response pathways. Widely applied in university botany laboratories and agricultural scientific research institutions.
Plant Tissue Culture & Cell Engineering
Served as the core induction hormone for plant callus culture, adventitious root differentiation, bud differentiation and somatic embryo regeneration. It is widely used in rapid propagation of seedlings, germplasm preservation and transgenic plant cultivation experiments.
Agricultural Growth Regulation & Cultivation Optimization
Applied in crop seedling rooting, cutting propagation, flower and fruit retention, and stress resistance improvement. It effectively optimizes plant growth rhythm, improves planting survival rate and increases crop yield and quality for economic crops and ornamental plants.
Indole Derivative Synthesis & Biochemical R&D
Used as the core indole carboxylic acid skeleton intermediate for the R&D of new plant growth regulators, green pesticide intermediates and bioactive indole derivatives, supporting structural optimization and efficacy upgrading of agricultural biochemical products.
Laboratory Formula Debugging & Teaching Experiment
Provided as standard high-purity IAA reagent for plant hormone mechanism verification, culture medium formula debugging and botanical teaching experiments, ensuring accurate data and stable experimental effects for scientific research and teaching work.
FAQ
Q1: What is Indole-3-acetic Acid (IAA) mainly used for?
A: Indole-3-acetic Acid is the most important natural auxin plant growth regulator. It is mainly used for plant physiology research, plant tissue culture induction, agricultural crop growth regulation and indole biochemical derivative synthesis, with efficient plant growth promotion and differentiation induction activity.
Q2: What is the metabolic relationship between IAA and Tryptophan?
A: Tryptophan is the core synthetic precursor of Indole-3-acetic Acid in plants. IAA is a typical indole metabolite derived from Tryptophan transformation. Together with animal-derived Serotonin and Melatonin, it constitutes a complete indole compound metabolic system, which is an important research direction of cross-domain biochemistry.
Q3: What are the core advantages of our Indole-3-acetic Acid?
A: Our IAA adopts low-temperature oxygen-free synthesis and multi-stage recrystallization purification technology, featuring ultra-high single-component purity, zero decomposition impurity interference, stable auxin biological activity and consistent batch efficacy. It effectively avoids experimental failure and unstable agricultural effects caused by product photolysis and inactivation, with outstanding stability and practicability.
Q4: How to store Indole-3-acetic Acid correctly?
A: IAA is extremely sensitive to strong light and high temperature, prone to photolysis and thermal decomposition leading to activity loss. It must be stored in vacuum-sealed, low-temperature, cool and dark dry conditions, avoiding alkaline environment contact. Standard low-temperature sealed storage ensures 24 months of stable shelf life and biological activity.
Q5: What is the appearance of high-purity IAA?
A: High-purity Indole-3-acetic Acid is uniform white to pale yellow crystalline powder at room temperature, odorless, stable crystal state, no caking, no discoloration and no deterioration precipitation.
Q6: Can I get free IAA samples for testing?
A: Yes, we provide free Indole-3-acetic Acid samples for plant tissue culture experiments, growth regulation verification and indole derivative synthesis tests. Bulk orders support customized purity and professional low-temperature vacuum packaging to meet scientific research and agricultural production needs.
