Indole-3-Acetic Acid

IAA, 3-Indoleacetic Acid

CAS
87-51-4
EC
201-748-2
Sectors
Agriculture

Indole-3-Acetic Acid (CAS 87-51-4) is a naturally occurring auxin plant hormone that regulates cell elongation and differentiation, supplied as a white to tan crystalline powder that dissolves in organic solvents and is used in agriculture and horticulture to stimulate rooting, fruit development and tissue culture growth.

Typical Properties

Molecular formulaC10H9NO2
Molecular weight175.18 g/mol
Appearancewhite to tan crystals
Formcrystalline
Coloroff-white to tan
Melting point168.5 °C
Density1.576 g/cm³
Flash point171°C
GHS signal wordWarning · Irritant / harmful
HS code29339990

Typical literature values for identification; lot-specific results are stated on the certificate of analysis (COA) and the safety data sheet (SDS) that accompany every delivery.

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Indole-3-Acetic Acid

Applications

Used in agriculture and horticulture to stimulate rooting, fruit development, and tissue culture growth. Also applied in biochemical research as a plant growth regulator.

Safety & Risks

Stable under normal handling; avoid exposure to light and air to prevent decomposition.

Packaging

Supplied in 1–25 kg aluminum foil bags or drums. Store cool, dark, and dry.