Molekula
Tetrabutylammonium hydroxide 20% solution in water N(CH2CH2CH2CH3)4OH
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
Tetrabutylammonium hydroxide is a quaternary ammonium compound used as a strong organic base in phase-transfer catalysis, organic synthesis, and pH adjustment in industrial processes. This 20% aqueous solution (CAS 2052-49-5) has a molecular formula of C16H37NO and a molecular weight of 259.47. It requires ambient storage and is classified with a signal word of *Danger*. Molekula supplies Tetrabutylammonium hydroxide 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
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100 mL — $108.80 per pack
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Specifications
| Property | Value |
|---|---|
| Appearance | Colourless transparent liquid |
| Purity | ≥20% in H2O |
| Carbonate (CO3(2-)) | ≤0.1% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Transport Class | 8 |
| Packing Group | II |
| Acidity | Base |
Identification
| Property | Value |
|---|---|
| SKU | 90029690 |
| CAS Number | 2052-49-5 |
| IUPAC Name | tetrabutylazanium hydroxide |
| EC Number | 218-147-6 |
| Molecular Formula | C16H37NO |
| Molecular Weight | 259.47 |
| Exact Mass | 259.2875 |
| SMILES | CCCC[N+](CCCC)(CCCC)CCCC.[OH-] |
| InChIKey | VDZOOKBUILJEDG-UHFFFAOYSA-M |
| InChI | InChI=1S/C16H36N.H2O/c1-5-9-13-17(14-10-6-2,15-11-7-3)16-12-8-4;/h5-16H2,1-4H3;1H2/q+1;/p-1 |
| PubChem CID | 2723671 |
| UN Number | UN3267 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 2923.90.0100 |
| Tariff Code | 2923900090 |
Safety & GHS
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Corrosive
GHS05
Hazard statements
- H290 May be corrosive to metals
- H314 (sub cat. 1B) Causes severe skin burns and eye damage
Precautionary statements
- P260 Do not breathe dust/fume/gas/mist/vapours/spray
- P264 Wash thoroughly after handling
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P304+P340 IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing
- P305+P351+P338 IF IN EYES: Rinse continuously with water for several minutes. Remove contact lenses if present and easy to do, continue rinsing
- P406 Store in a corrosive resistant container with a resistant inner liner
Documents
Safety Data Sheets (SDS)
Available in English, German, Spanish, French, Italian, Portuguese, Arabic, Dutch.
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
- 1-Butanaminium, N,N,N-tributyl-, hydroxide
- 1-Butanaminium, N,N,N-tributyl-, hydroxide (1:1)
- Ammonium, tetrabutyl-, hydroxide
- N,N,N-Tributyl-1-butanaminium hydroxide
- TBAH
- Tetra-n-butylammonium hydroxide
- Tetrabutylammonium Hydroxide (1.0M in Methanol)
- Tetrabutylammonium hydroxide; Tetra-n-butylammonium hydroxide
- tetrabutylammonium oxide
- tetrabutylazanium;hydroxide
Frequently asked questions
What is tetrabutylammonium hydroxide (20% solution in water) commonly used for?
This solution is primarily used as a phase-transfer catalyst in organic synthesis, as a reagent in analytical chemistry, and in the production of surfactants and specialty chemicals.
What is the molecular formula and molecular weight of tetrabutylammonium hydroxide?
The molecular formula is **C₁₆H₃₇NO** (as the free base), and the molecular weight is **259.47 g/mol** (anhydrous). The 20% aqueous solution accounts for the water content.
How should tetrabutylammonium hydroxide solution be stored?
Store at **ambient temperature** in a tightly sealed container, away from moisture, oxidizing agents, and incompatible materials. Use appropriate ventilation when handling.
What grade or purity is available for this product?
Molekula supplies this product as a **technical-grade 20% aqueous solution**, suitable for industrial and laboratory applications requiring phase-transfer catalysis.
Can Molekula supply tetrabutylammonium hydroxide in bulk quantities?
Yes, we offer bulk packaging options for this product, including drums and IBCs, to accommodate large-scale industrial and research requirements.
What documentation is provided with an order of tetrabutylammonium hydroxide?
Each order includes a **Certificate of Analysis (CoA)**, Material Safety Data Sheet (MSDS), and a product specification sheet detailing purity, hazard warnings, and handling instructions.
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