Molekula
Indole-3-butyric acid
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Indole-3-butyric acid is a synthetic auxin widely used as a plant growth regulator to promote rooting in cuttings, enhance grafting success, and stimulate seed germination. It is also applied in tissue culture and agricultural biotechnology. This chemical has a CAS number of 133-32-4, a molecular formula of C12H13NO2, and a molecular weight of 203.24. It must be stored between 2 to 8°C and carries a "Danger" signal word due to its hazardous properties. Molekula supplies Indole-3-butyric acid from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Often bought together
Pricing & pack sizes
These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.
Need a different size? Add the nearest pack and change the size in your basket — we price it at the same rate per unit.
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5 g — £18.50 per pack ex VAT · £22.20 inc. VAT
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25 g — £42.90 per pack ex VAT · £51.48 inc. VAT
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100 g — £140.10 per pack ex VAT · £168.12 inc. VAT
Need a different quantity or pack?
Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | Off-white crystals |
| Melting Point | 122 - 124°C |
| Loss on Drying | ≤0.5% |
| Residue on Ignition | ≤0.1% |
| Assay HPLC | ≥98% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | 2 to 8 °C |
| Transport Class | 6.1 |
| Packing Group | III |
| Acidity | Acid |
For research use only. Not for human use.
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | White to slightly yellow crystals |
| Odour | Essentially odorless |
| Melting Point | 124.5 °C |
| Water Solubility | 250 mg/L at 20 °C |
| Vapour Pressure | 1.8 × 10⁻⁶ mmHg at 25 °C (Estimated) |
| pKa | pKa = 4.7 |
| log P (octanol/water) | 2.30 |
Source: PubChem CID 8617 (HSDB, DrugBank)
Identification
| Property | Value |
|---|---|
| SKU | 26194554 |
| CAS Number | 133-32-4 |
| IUPAC Name | 4-(1H-indol-3-yl)butanoic acid |
| EC Number | 205-101-5 |
| Molecular Formula | C12H13NO2 |
| Molecular Weight | 203.24 |
| Exact Mass | 203.0946 |
| SMILES | C1=CC=C2C(=C1)C(=CN2)CCCC(=O)O |
| InChIKey | JTEDVYBZBROSJT-UHFFFAOYSA-N |
| InChI | InChI=1S/C12H13NO2/c14-12(15)7-3-4-9-8-13-11-6-2-1-5-10(9)11/h1-2,5-6,8,13H,3-4,7H2,(H,14,15) |
| PubChem CID | 8617 |
| UN Number | UN2811 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 2933.99.8290 |
| Tariff Code | 2933998090 |
Safety & GHS
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Toxic
GHS06
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Health Hazard
GHS07
Hazard statements
- H301 Toxic if swallowed
- H315 Causes skin irritation
- H319 Causes serious eye irritation
- H335 May cause respiratory irritation
Precautionary statements
- P260 Do not breathe dust/fume/gas/mist/vapours/spray
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P301+310 IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician
- P302+352 IF ON SKIN: Wash with soap and water
- P304+340 IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
Documents
Safety Data Sheets (SDS)
Available in English, English (US), French, German, Italian, Portuguese, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
- 1H-INDOLE-3-BUTANOIC ACID
- 3-Indolebutyric acid
- 4-(1H-Indol-3-yl)butanoic acid
- 4-(3-Indolyl)butyric acid
- 4-indol-3-ylbutyric acid
- Hormodin
- Indole-3-butanoic acid
- Indolebutyric acid
- Jiffy grow
- Seradix
Frequently asked questions
What is Indole-3-butyric acid (IBA) commonly used for?
Indole-3-butyric acid is primarily used as a synthetic auxin in plant tissue culture, rooting powders, and horticultural applications to promote root growth and development.
What is the chemical formula and molecular weight of Indole-3-butyric acid?
The chemical formula is **C₁₂H₁₃NO₂**, and the molecular weight is **203.24 g/mol**.
How should Indole-3-butyric acid be stored?
Store at **2–8°C** in a cool, dry place, away from direct sunlight and incompatible substances. Follow proper laboratory or industrial storage protocols.
What grades or purities of Indole-3-butyric acid does Molekula supply?
Molekula supplies **analytical/biochemical grade** and **plant tissue culture grade** Indole-3-butyric acid. Contact us for specifications on purity and intended use.
Can Molekula supply Indole-3-butyric acid in bulk quantities?
Yes, we offer bulk quantities of Indole-3-butyric acid. Minimum order quantities and packaging options vary—please inquire for details tailored to your needs.
What documentation comes with an order of Indole-3-butyric acid?
Each order includes a **Certificate of Analysis (CoA)**, **Material Safety Data Sheet (MSDS)**, and a **packing list**. Additional documentation, such as a **Certificate of Origin**, may be provided upon request.
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