Molekula
Potassium tert-butoxide
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
Potassium tert-butoxide is a strong organic base used in deprotonation reactions and as a catalyst in organic synthesis. It is available in powder or solid form, typically stored at ambient temperature. CAS: 865-47-4, Molecular formula: KOC(CH3)3, Molecular weight: 112.21 g/mol. Signal word: Danger.
Molekula supplies Potassium tert-butoxide in 500 g packs, from £123.96 inc. VAT. It is in stock for same-day dispatch. Every batch ships with a certificate of analysis, and safety data sheets are available in 5 languages. Larger quantities, up to multi-tonne, are quoted on request.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
In stock — same-day dispatch
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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500 g — £103.30 per pack ex VAT · £123.96 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 | White to almost white powder |
| Content | ≥98% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Transport Class | 4.2 (8) |
| Packing Group | II |
| Acidity | Base |
Identification
| Property | Value |
|---|---|
| SKU | 12739396 |
| CAS Number | 865-47-4 |
| IUPAC Name | potassium 2-methylpropan-2-olate |
| EC Number | 212-740-3 |
| Molecular Formula | KOC(CH3)3 |
| Molecular Weight | 112.21 |
| Exact Mass | 112.029 |
| SMILES | CC(C)(C)[O-].[K+] |
| InChIKey | LPNYRYFBWFDTMA-UHFFFAOYSA-N |
| InChI | InChI=1S/C4H9O.K/c1-4(2,3)5;/h1-3H3;/q-1;+1 |
| PubChem CID | 23665647 |
| UN Number | UN3206 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| Tariff Code | 29051900 |
Safety & GHS
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Flammable
GHS02
-
Corrosive
GHS05
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Health Hazard
GHS07
Hazard statements
- EUH014 Reacts violently with water
- H228 Flammable solid
- H252 Self-heating in large quantities; may catch fire
- H260 In contact with water releases flammable gases which may ignite spontaneously
- H302 Harmful if swallowed
- H314 Causes severe skin burns and eye damage
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
- P303+361 IF ON SKIN (or hair): Remove immediately all contaminated clothing. Rinse with water/shower
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
- P310 Immediately call a POISON CENTER or doctor/physician
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.
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
- 2-Methyl-2-propanol, potassium salt
- 2-Propanol, 2-methyl-, potassium salt
- 2-Propanol, 2-methyl-, potassium salt (1:1)
- potassium 1,1-dimethylethoxide
- potassium 2-methylpropan-2-olate
- potassium t-butanolate
- Potassium T-butoxide
- Potassium tert-butanolate
- Potassium tert-butylate
- tert-butoxypotassium
Frequently asked questions
What is potassium tert-butoxide used for?
It is commonly used as a strong base in organic synthesis, particularly in elimination reactions and the formation of enolates.
What is the chemical formula and molecular weight of potassium tert-butoxide?
The formula is KOC(CH3)3 and the molecular weight is 112.21 g/mol.
How should potassium tert-butoxide be stored?
It should be stored at ambient temperature, protected from moisture and air.
What specification of potassium tert-butoxide does Molekula supply?
Molekula supplies potassium tert-butoxide as a white to almost white powder with a content of ≥98%.
Can Molekula supply potassium tert-butoxide in bulk?
Yes, Molekula can supply potassium tert-butoxide in bulk quantities upon request.
What documentation comes with a purchase of potassium tert-butoxide?
Each order includes a Certificate of Analysis and Safety Data Sheet (SDS).
Where can I buy Potassium tert-butoxide?
Directly from Molekula, which lists Potassium tert-butoxide in 500 g packs from £123.96 inc. VAT, with a certificate of analysis for every batch. Larger quantities are quoted on request. Molekula's offices: United Kingdom, France, Spain, Germany, Italy, United States and China.
Is Potassium tert-butoxide dangerous goods for shipping?
Yes. Potassium tert-butoxide ships as dangerous goods: UN3206, class 4.2 (8), packing group II.
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.