IBA cytokinin Indole-3-Butyric acid 3-indolebutyric acid 98%TC plant growth regulator cas 133-32-4 CAS NO.133-32-4

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

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.

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.