Product Details
3-Indoleacetic acid functions as a highly effective growth promoter for lower plants. It is naturally generated by a variety of fungi such as yeast, and can be extracted from strains including Aspergillus niger and Rhizopus sp. This compound finds extensive applications in horticultural production as well as diverse industrial fields.

Parameters
Melting point | 165-169 °C (lit.) |
Boiling point | 306.47°C (rough estimate) |
density | 1.1999 (rough estimate) |
bulk density | 620kg/m3 |
refractive index | 1.5460 (estimate) |
Fp | 171°C |
storage temp. | -20°C |
solubility | DMSO:30.0(Max Conc. mg/mL);171.25(Max Conc. mM) |
pka | 4.75(at 25℃) |
form | crystalline |
color | off-white to tan |
Water Solubility | Soluble in ethanol (50 mg/ml), methanol, DMSO, and chloroform (sparingly). Insoluble in water. |
Decomposition | 167 ºC |
Sensitive | Light Sensitive |
Merck | 144,964 |
BRN | 143358 |
Stability: | Stable. Incompatible with strong oxidizing agents. Light sensitive. |
LogP | 1.41 |
CAS DataBase Reference | 87-51-4(CAS DataBase Reference) |
NIST Chemistry Reference | Indole-3-acetic acid(87-51-4) |
EPA Substance Registry System | Indole-3-acetic acid (87-51-4) |
Safety Information
Hazard Codes | Xi |
Risk Statements | 36/37/38 |
Safety Statements | 22-24/25 |
WGK Germany | 3 |
RTECS | NL3150000 |
F | 2008/10/23 |
Hazard Note | Irritant |
TSCA | Yes |
HS Code | 29339990 |
Toxicity | LD50 intraperitoneal in mouse: 150mg/kg |
Application
Indole-3-acetic acid (IAA, CAS#87-51-4) is a natural plant hormone mainly used in agricultural production to promote rooting of plant cuttings, prolong the preservation period of flowers and fruits, and modulate plant growth and fruit maturation. Furthermore, it exerts a critical function in horticultural tissue culture, improvement of plant stress tolerance, and studies on plant physiological processes. Rational control of usage concentration is essential to avoid growth inhibition in plants.



