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Indole-3-acetic acid

CAS Number
87-51-4
EC Number
201-748-2
Chemical Formula
C10H9NO2
Molecular Weight
175.18 g/mol

Description

Indole-3-acetic acid ( CAS 87-51-4 ), commonly abbreviated as IAA, is the primary naturally occurring auxin. This class of plant growth hormones regulates cell elongation, root initiation, and developmental responses across virtually all plant species. In commercial practice, it functions as a rooting agent and plant growth regulator in agricultural and horticultural applications. IAA is used in propagation programs to stimulate adventitious root formation in cuttings. This reduces establishment time for ornamental, fruit, and forestry crops. In agricultural research and crop science, it serves as a reference standard for auxin activity studies and plant hormone quantification assays. Pharmaceutical and biochemical manufacturers source IAA as an intermediate or reference compound in synthesis workflows targeting indole-derived molecules. It is a critical component for many laboratory applications. Cosmetic formulators have incorporated it into scalp and hair care formulations targeting follicle stimulation. Its plant-derived origin supports naturals-positioning claims for high-end personal care products. Indole-3-acetic acid is supplied as a white to off-white crystalline powder. It is available in technical grade for agricultural and research use, as well as high-purity grades meeting specific requirements. Our material meets the specifications required by pharmaceutical and analytical customers. Packaging ranges from small research quantities to bulk orders to suit various industrial and laboratory needs. Storage recommendations typically specify cool, dry conditions to maintain stability over time. We ensure that all batches are tested to meet rigorous quality and purity standards for our global clients. Contact us for supply of Indole-3-acetic acid Request Quote

Other Names (Synonyms)

Rhizopin | Kyselina 3-indolyloctova | indoxyl acetic acid | Indolylacetic acid | Indolyl-3-acetic acid | Indolyl-3-acetate | Indole-3-acetate | Indol-3-ylacetate | IAA

Key Technical Features

  • High Purity Grade standard
  • Consistent Batch Quality
  • Full Regulatory & REACH Support
  • Global Logistics Network enabled

Physical Properties

Melting Point168.5 °C
Boiling Point306.47°C (rough estimate)
Density1.576 g/cm³
Flash Point171°C
Appearancewhite to tan crystals
Coloroff-white to tan
Formcrystalline
Water SolubilitySoluble in ethanol (50 mg/ml), methanol, DMSO, and chloroform (sparingly). Insoluble in water.
Refractive Index1.5460 (estimate)
Log P1.410

Safety & Handling

Warning
GHS07· Irritant

Hazard Statements

H302
H302
H315
H315
H319
H319
H335H335

Precautionary Statements

P261
P261
P264
P264
P270
P270
P271
P271
P280
P280
P319
P319
P321
P321
P330
P330
P405
P405
P501
P501
P265
P265
P317
P317
P352
P352
P340
P340
P317
P317
P317
P317
P364
P364
P233
P233
P338

Trade & Regulatory

HS Code29339990
Storage Class11 - Combustible Solids
WGK (Germany)3