IAA in Plant Growth Regualtor
2.Professional Indole-3-acetic acid/IAA supplier
Plant Growth Regulator
Indole-3-acetic acid, IAA, 3-Indolacetic acid
Physical and Chemical
1.Appearance: White-like crystal
2.Molecular weight: 175.19
3.Melting point: 165-166°C
4. Residues after ignition: 0.08%max
5. Loss on drying: 0.5%max
IAA dissolves in anhydrous ethanol, ethyl acetate and dichloroethane instantly; it can
dissolve in Diethyl ether and propyl-alcohol, and it can’t dissolve in water and benzene
IAA is easy to be decomposed in the light and air.
Indolylacetic acid (IAA) is a kind of indole broad-spectrum plant growth regulator with
1.IAA affects cell division and cell elongation;
2.IAA is used to stimulate rooting of herbaceous and woody ornamentals and increase the
size of fruit;
3.IAA prevents blossom fall and fruit drop before fructification and fruit ripening, flower
& fruit thinning flower introduction, increase output.
Acute percutaneous toxicity for mouse LD50 1000mg/KG;
Acute intraperitoneal toxicity LD50 150mg/Kg.
LC50 for carp (48hr),40ppm.
Non-toxic for bees at normal dosage.