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INDOLE-3-ACETIC
ACID
Common name:
IAA
Chemical name:
indol-3-ylacetic acid; B-indoleacetic acid
Chemical family:
plant growth regulator
Appearance:
Off-white crystal
Formula: C10H9NO2
Molecular Weight:
175.2
Melting point:
167-169¡æ
Solubility:
In water 1.5 g/l (20 ). In ethanol 100-1000, acetone 30-100,
diethyl ether 30-100, chloroform 10-30 (all in g/l).
Stability: Very
stable in neutral, acidic and alkaline media. Unstable to
light. pKa 4.75
Specification:
96%, 98%,99%tech. Grade
Use:
Mode of action Plant growth regulator which affects cell division
and cell elongation.
Used to stimulate rooting of cuttings of herbaceous and woody
ornamentals. Formulation types TB; DP. Selected tradenames
hizopon A (Fargro).
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