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Indole-3-Butyric acid

Name: Indole-3-Butyric acid
SKU: 0

Basic Information

CAS No.: 133-32-4
Molecular Formula: C12H13NO2
Molecular weight: 203.24

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Product Details

Indole-3-butyric acid pure products are white to light yellow crystalline solids, and industrial products are often light brown or white powder. Has a slight peculiar smell. Insoluble in water, slightly soluble in benzene, toluene, easily soluble in ethanol, ether, acetone and chloroform and other organic solvents. It is stable at room temperature, but it is easy to decompose under strong acid and alkali conditions, and it is also sensitive to light and heat.

Chemical Properties

Property	Value
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

Property	Value
Hazard symbols	T, Xi
Hazard class codes	25-36/37/38
Safety descriptions	26-36-45-38-36/37/39-28A
UN dangerous goods number	UN 2811 6.1/PG 3
WGK Germany	3
RTECS number	NL5250000
F	8-10-23
Hazard Note	Irritant
TSCA	TSCA listed
Hazard class	6.1
Packing group	III
HS code	29339990
Storage class	6.1C - Combustible, acute toxicity Category 3 Toxic compounds or compounds causing chronic effects
Hazard class (category)	Acute toxicity, Category 3, Oral
Hazardous substances data	133-32-4 (Hazardous Substances Data)
Toxicity	LD50 i.p. in mice: 100 mg/kg (Anderson)

Product Usage

Indole-3-Butyric Acid (吲哚-3-丁酸) - Product Applications

Indole-3-Butyric Acid (IBA) is a high-efficiency plant growth regulator belonging to the auxin family, widely recognized for its superior ability to promote root initiation. Its primary application is in horticulture and silviculture, where it is the active ingredient in rooting hormones for cuttings, significantly increasing the success rate of propagation for ornamental plants, fruit trees, and forest species. In broad-acre agriculture, it is used as a seed soak or foliar spray to enhance root system development, leading to improved nutrient uptake and increased crop resilience against environmental stress. Furthermore, it is a vital tool in plant tissue culture, used in specialized media to induce adventitious root formation in micropropagated plantlets. In landscape management, IBA is applied during transplanting to reduce "transplant shock" and ensure the rapid establishment of young trees and shrubs.

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Indole-3-Butyric acid

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