Indole-3-Butyric Acid CAS#133-32-4
Potent Plant Hormone:
Promotes root growth and plant development as an auxin.
Natural Metabolite:
Derived from biological processes, ensuring plant compatibility.
Chemical Stability :
Conjugate acid structure enhances reliability in diverse conditions.
Multi-Functional Auxin :
Supports cell elongation and differentiation for robust plant health.
Indole-3-Butyric Acid (CAS# 133-32-4)
Indole-3-butyric acid is a carboxylic acid with an indol-3-yl group, where butanoic acid bears a 1H-indol-3-yl substituent at position 1. It serves as a plant hormone, metabolite, and auxin. Derived from butyric acid, it also acts as the conjugate acid of indole-3-butyrate.
Parameters
Melting point | 124-125.5 °C(lit.) |
Boiling point | 341.55°C (rough estimate) |
density | 1.1255 (rough estimate) |
bulk density | 360kg/m3 |
refractive index | 1.5440 (estimate) |
storage temp. | 2-8°C |
solubility | DMF: 25 mg/mL; DMSO: 25 mg/mL; Ethanol: 25 mg/mL; PBS (pH 7.2): 0.1 mg/mL |
pka | 4.83±0.10(Predicted) |
form | Liquid |
color | Clear colorless to pale yellow |
Water Solubility | Soluble in water(0.25g/L). |
Sensitive | Air Sensitive |
Merck | 14,4965 |
BRN | 171120 |
Stability: | Stable. Incompatible with strong oxidizing agents. Light sensitive. |
InChIKey | JTEDVYBZBROSJT-UHFFFAOYSA-N |
LogP | 2.300 |
CAS DataBase Reference | 133-32-4(CAS DataBase Reference) |
EPA Substance Registry System | Indole-3-butyric acid (133-32-4) |
Safety Information
Hazard Codes | T,Xi |
Risk Statements | 25-36/37/38 |
Safety Statements | 26-36-45-38-36/37/39-28A |
RIDADR | UN 2811 6.1/PG 3 |
WGK Germany | 3 |
RTECS | NL5250000 |
F | 8-10-23 |
Hazard Note | Irritant |
TSCA | T |
HazardClass | 6.1 |
PackingGroup | III |
HS Code | 29339990 |
Hazardous Substances Data | 133-32-4(Hazardous Substances Data) |
Toxicity | LD50 i.p. in mice: 100 mg/kg (Anderson) |
Product Application of Indole-3-Butyric Acid (CAS# 133-32-4)
Indole-3-butyric acid (IBA) is a broad-spectrum indole-based plant growth regulator and an effective rooting agent. It enhances rooting in cuttings of both herbaceous and woody ornamental plants. Additionally, IBA supports fruit set in orchards and improves fruit setting rates.



