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 2000 · 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
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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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.
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.