Molekula
Tetrabutylammonium hydroxide 12.5% in methanol
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 1999 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Tetrabutylammonium hydroxide 12.5% in methanol is a strong organic base used in organic synthesis, particularly in phase-transfer catalysis and deprotonation reactions. It is a clear, colorless to pale yellow liquid with a characteristic ammoniacal odor. Available in 12.5% concentration in methanol, it has a molecular weight of 259.47 g/mol, CAS number 2052-49-5, and should be stored at ambient temperature. It is classified as Danger due to its corrosive nature. Molekula supplies Tetrabutylammonium hydroxide 12.5% in methanol 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
In stock — same-day dispatch
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500 mL — £128.90 per pack ex VAT · £154.68 inc. VAT
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Specifications
| Property | Value |
|---|---|
| Appearance | Colourless transparent liquid |
| Identification | Conforms to reference |
| Assay | ≥12.0% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Flash Point | 10 °C |
| Transport Class | 3 (6.1, 8) |
| Packing Group | II |
| Acidity | Base |
Identification
| Property | Value |
|---|---|
| SKU | 90032372 |
| CAS Number | 2052-49-5 |
| IUPAC Name | tetrabutylazanium hydroxide |
| EC Number | 218-147-6 |
| Molecular Formula | (CH3CH2CH2CH2)4N(OH) |
| 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 | UN3286 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 38159050 |
| Tariff Code | 3815909090 |
Safety & GHS
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Flammable
GHS02
-
Corrosive
GHS05
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Toxic
GHS06
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Serious Health Hazard
GHS08
Hazard statements
- H225 Highly flammable liquid and vapour
- H301 + H311 + H331 Toxic if swallowed, in contact with skin or if inhaled
- H314 (sub cat. 1B) Causes severe skin burns and eye damage
- H370 Causes damage to organs
Precautionary statements
- P210 Keep away from heat/sparks/open flames/hot surfaces - No smoking
- 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
- P303+361 IF ON SKIN (or hair): Remove immediately all contaminated clothing. Rinse with water/shower
- P308+313 IF exposed or concerned: Get medical advice/attention
Documents
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.
Quality certificates
Molekula Group is certified to ISO 9001:2015 (quality) and ISO 14001:2015 (environmental management), audited by a UKAS-accredited body. Both certificates are valid to 17 May 2028.
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 12.5% in methanol used for?
It is commonly used as a phase-transfer catalyst and base in organic synthesis, particularly in reactions requiring strong basic conditions in non-aqueous environments.
What is the chemical formula and molecular weight?
The formula is (CH3CH2CH2CH2)4N(OH) with a molecular weight of 259.47 g/mol.
How should it be stored?
Store at ambient temperature, away from moisture and incompatible materials, and keep the container tightly closed.
What grade is available?
This product is available as a technical grade solution in methanol, suitable for laboratory and industrial use.
Can Molekula supply it in bulk?
Yes, Molekula can supply tetrabutylammonium hydroxide 12.5% in methanol in bulk quantities—please contact sales for details.
What documentation comes with the order?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS) with the shipment.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.