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Indol-3-butyric Acid (IBA)


Synonyms: 4-(indol-3-yl)butyric acid (IUPAC); 1H-Indole-3-butanoic acid; 4-(3-1H-Indolyl)butyric acid; IBA; AIB; 'Seradix' (Bayer CropScience); mixtures 'PGR-IV' (+ gibberellic acid) (Marman). Other products 'Chryzoplus' (Fargro, Rhizopon); 'Chryzopon' (Fargro, Rhizopon); 'Chryzosan' (Fargro, Rhizopon); 'Chryzotek' (Fargro, Rhizopon); 'Chryzotop' (Fargro, Rhizopon); 'Hormodin' (OHP); 'KickStand PGR' (Helena); 'Rhizopon AA' (Fargro, Rhizopon); 'RootGro' (LT BioSyn); mixtures 'Rootone F' (+ 2-(1-naphthyl)acetamide + thiram) (with 2-methylnaphthylacetic acid and 2-methylnaphthaleneacetamide) (Bayer CropScience); 'Empower2' (+ bifenthrin) (Helena); 'GoldenGro R' (+ 1-naphthylacetic acid + cytokinins) (LT BioSyn); 'MegaGro L' (+ cytokinins) (LT BioSyn); 'Synergol' (+ 1-naphthylacetic acid + dichlorophen) (Hortichem). Discontinued products mixtures 'Boll-Set' * (+ gibberellic acid) (Micro Flo); 'Early Harvest' * (+ cytokinins + gibberellic acid) (Griffin); 'Maxon II' * (+ gibberellic acid) (Agriliance); 'Mepex Plus-CP' * (+ cytokinins + gibberellic acid + mepiquat chloride) (DuPont); 'Super Lagniappe' * (+ cytokinins + gibberellic acid) (Agriliance).
CAS No.: 133-32-4
RTECS No.: NL5250000
Molecular Weight: 203.24
Molecular Formula: C12H13NO2
Structural Formula: IBA
m.p.: M.p. 123–125 °C
Form: Colourless to pale yellow crystals.
V.p.: <0.01 mPa (25 °C)
Solubility: In water 250 mg/l (20 °C). In benzene >1000, acetone, ethanol and diethyl ether 30–100, chloroform 0.01–0.1 (all in g/l).
Stability: Very stable in neutral, acidic and alkaline media.
F.p. Non-flammable


Indole-3-butyric acid (IBA) is a plant growth regulator (plant hormone) in the auxin family and is an ingredient in many commercial plant rooting horticultural products. For use as such, it should be dissolved in about 75% (or purer) alcohol (as IBA does not dissolve in water), until a concentration from between 10,000 ppm to 50,000 ppm is achieved - this solution should then be diluted to the required concentration using distilled water.


Indole-3-butyric acid (IBA) putiy: 99.0% min.
Appearance: white crystalline powder

Standard Packaging

250g, 500g, 1000g/aluminum foil bags in carton.
25kg/ fiber drum

Packaging photos coming soon

Risks and Safety Information

Acute oral LD50 for mice 100 mg/kg. Other Acute i.p. LD50 for mice 100 mg/kg. Bees Not toxic to bees.
Indole-3-butyric Acid (IBA) is regulated by UN as hazardous substance.
Class 6.1; UN 2811; PG III
R-Phrase: R25, R36/37/38 S-Phrase: S26, S28, S36/37/39, S38, S45
For more information, please see MSDS

Warning, toxic!

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