Molekula
Tetrabutylammonium hydroxide solution 55% in H2O
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 solution 55% in water is a quaternary ammonium compound used as a phase-transfer catalyst, pH adjuster, and reagent in organic synthesis, including polymerizations and extractions. It is a hygroscopic, colorless to yellowish liquid with strong basic properties. CAS 2052-49-5, molecular formula (CH3CH2CH2CH2)4N(OH), molecular weight 259.47 g/mol. Store at ambient temperatures. Signal word: Danger. Molekula supplies Tetrabutylammonium hydroxide solution 55% in H2O 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.
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.
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100 mL — £30.90 per pack ex VAT · £37.08 inc. VAT
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Specifications
| Property | Value |
|---|---|
| Appearance | Colourless to faint yellow liquid |
| Assay | 55% +/-1% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Flash Point | 42 °C |
| Transport Class | 8 |
| Packing Group | II |
| Acidity | Base |
Identification
| Property | Value |
|---|---|
| SKU | 90022195 |
| CAS Number | 2052-49-5 |
| Molecular Formula | (CH3CH2CH2CH2)4N(OH) |
| Molecular Weight | 259.47 |
| SMILES | [OH-].CCCC[N+](CCCC)(CCCC)CCCC |
| UN Number | UN3267 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 29239001 |
| Tariff Code | 2923900090 |
Safety & GHS
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Corrosive
GHS05
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Health Hazard
GHS07
Hazard statements
- H302 Harmful if swallowed
- H314 Causes severe skin burns and eye damage
Precautionary statements
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P301+312 IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell
- P302+352 IF ON SKIN: Wash with soap and water
- 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, French, German, Italian, 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
No alternate names recorded for this product.
Frequently asked questions
What is tetrabutylammonium hydroxide solution (55% in H2O) commonly used for?
This solution is widely used as a phase-transfer catalyst in organic synthesis, in electroplating baths, and as a reagent in analytical chemistry for pH adjustments and extractions.
What is the chemical formula and molecular weight of this product?
The formula is (CH₃CH₂CH₂CH₂)₄N(OH), and the molecular weight is 259.47 g/mol (for the full compound tetrabutylammonium hydroxide, C16H37NO, including the hydroxide; the solution also contains water).
How should this product be stored?
Store at ambient temperature in a tightly sealed container, away from moisture, oxidizing agents, and incompatible materials. Use proper ventilation.
What grades or purity levels of tetrabutylammonium hydroxide solution does Molekula offer?
Molekula supplies this product as a 55% aqueous solution, with purity suitable for industrial and laboratory applications. Custom concentrations may be available upon request.
Can Molekula supply this product in bulk quantities?
Yes, Molekula can provide this product in bulk quantities (drums, IBCs, or custom packaging) for industrial customers. Minimum order quantities may apply.
What documentation is provided with an order of this chemical?
Each order includes a Certificate of Analysis (CoA), Material Safety Data Sheet (MSDS/SDS), and Danger label (Signal Word: Danger). Additional documentation, such as a Packing List, is provided upon request.
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