INDOLE-3-ACETIC ACID

Product NameINDOLE-3-ACETIC ACID
CAS6505-45-9
MFC10H10NNaO2
MW199.18
EINECS201-748-2
MOL File6505-45-9.mol

Chemical Properties

Melting point	165-169 °C(lit.)
Flash point	171 °C
storage temp.	2-8°C
solubility	H₂O: soluble
form	crystalline
color	off-white to tan
Water Solubility	H2O: soluble
Stability	Hygroscopic
CAS DataBase Reference	6505-45-9(CAS DataBase Reference)

Safety Information

Hazard Codes	Xi
Risk Statements	36/37/38
Safety Statements	22-24/25
WGK Germany	3
RTECS	NL3150000
F	8-10-23
HazardClass	IRRITANT

MSDS

Provider	Language
ACROS	English
SigmaAldrich	English
ALFA	English

Usage And Synthesis

Chemical Properties

Crystals.The natural material is levorotatory, specific rotation ?3.8 degrees in alcohol (20C). Insoluble in water and chloroform; soluble in alcohol and ether.

Uses

Agriculture and horticulture, growth-promoting hormone, plant cell enlarger.

Uses

Indole-3-acetic acid is a plant growth regulator. It induces cell division and cell elongation that promotes plant growth.

Definition

A plant hormone.

Synthesis Reference(s)

Journal of the American Chemical Society, 74, p. 3916, 1952 DOI: 10.1021/ja01135a061
Organic Syntheses, Coll. Vol. 5, p. 654, 1973

General Description

Indole-3-acetic acid is a plant growth regulator. Indole-3-acetic acid induces cell division and cell elongation that promotes plant growth.

Biological Activity

Indole-3-acetic acid (IAA) is a plant growth regulator. Indole-3-acetic acid induces root initiation, cell division, and cell elongation which promotes plant growth. It mediates organ development, fertility, cell orientation, and elongation. Overproduction of IAA is found to trigger ethylene production and therefore inhibit plant growth. In addition, up-regulation of IAA by pathogenic bacteria causes excess cellular division leading to gall disease in the plant.