Common name  IBA (4-indol-3-ylbutyric acid)

IUPAC name  4-(indol-3-yl)butyric acid

Chemical name  1H-indole-3-butanoic acid

CAS No.  133-32-4

Molecular formula  C₁₂H₁₃NO₂

Molecular weight  203.2

Properties：Off-white to yellowish powder, melting point is 123-125; solubility is 50mg/L in water,>1000 in benzene, 30-100 in acetone, ethanol, aether.0.01-0.1(all are g/L) in chloroform. It is stable in acid and neutral.

oxicology:Acute oral LD50 for mouse 100mg/Kg; acute percutaneous LD50 for rat 5000mg/Kgmouse1760mg/Kg; acute intraperitoneal LD50 for mouse 150mg/Kg. LC50 for carp (48hr)180ppm, water flea >40ppm. Non-toxic to bees at normal dosage.

Applications：

It is a broad-spectrum endogenesis plant growth regulator. It can stimulate rooting system of plant's and

cuttings' (herbaceous and woody ornamentals), and it can increase various fruits and melons' fruit-setting rate. It can promote cell division and cell growth, increase errant roots and fruitage; to prevent plants

from dropping fruit, to change the ratio of male and female flowers;It also can get inside the plant through leaves and cortices to reach the action point with the nutrient flow.