Molekula
Potassium tert-butoxide, pure, 1.6-1.7M (20 wt.%) in Tetrahydrofuran
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
Potassium tert-butoxide is a strong, non-nucleophilic base commonly used in organic synthesis for elimination reactions, such as the E2 reaction, and as a reagent in enolate formation. It is supplied as a 20 weight percent solution in tetrahydrofuran (THF) with a concentration of 1.6–1.7 mol/L. The product has a CAS number of 865-47-4, a molecular formula of (CH3)3COK, and a molecular weight of 112.21 g/mol. It must be stored at ambient conditions and carries a "Danger" signal word. Molekula supplies Potassium tert-butoxide 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.
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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5 L — £624.00 per pack ex VAT · £748.80 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.
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Specifications
| Property | Value |
|---|---|
| Appearance | Pale yellow to orange liquid |
| Assay (Mass Balance) | 19 - 21% (wt/%) |
| Note | May develop some turbidity |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Flash Point | -21 °C |
| Transport Class | 8(3) |
| Packing Group | I |
| Acidity | Base |
Identification
| Property | Value |
|---|---|
| SKU | 90026339 |
| CAS Number | 865-47-4 |
| Molecular Formula | (CH3)3COK |
| Molecular Weight | 112.21 |
| SMILES | CC(C)(C)[O-].[K+] |
| UN Number | UN2920 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 29051990 |
| Tariff Code | 2905190019 |
Safety & GHS
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Flammable
GHS02
-
Corrosive
GHS05
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Health Hazard
GHS07
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Serious Health Hazard
GHS08
Hazard statements
- EUH014 Reacts violently with water
- EUH019 May form explosive peroxides
- H225 Highly flammable liquid and vapour
- H314 (sub cat. 1A) Causes severe skin burns and eye damage
- H336 May cause drowsiness or dizziness
- H351 Suspected of causing cancer
Precautionary statements
- P201 Obtain special instructions before use
- P210 Keep away from heat/sparks/open flames/hot surfaces - No smoking
- P223 Keep away from any possible contact with water, because of violent reaction and possible flash fire
- 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
- 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 potassium tert-butoxide primarily used for?
Potassium tert-butoxide is commonly used as a strong base in organic synthesis, including alkylation, elimination reactions, and as a reagent in the preparation of enolates.
What is the chemical formula and molecular weight of potassium tert-butoxide?
The chemical formula is **(CH₃)₃COK**, and the molecular weight is **112.21 g/mol** (for the anhydrous form).
How should this product be stored?
Store at **ambient temperature** in a tightly sealed container, away from moisture and carbon dioxide, as it reacts vigorously with both.
What purity grade is available for potassium tert-butoxide from Molekula?
Molekula supplies this product as a **1.6–1.7M solution (20 wt.%) in tetrahydrofuran (THF)**, suitable for high-purity applications in research and synthesis.
Can Molekula supply potassium tert-butoxide in bulk quantities?
Yes, bulk quantities are available upon request—contact Molekula’s sales team for custom packaging and pricing.
What documentation is provided with each order of potassium tert-butoxide?
Each order includes a **Certificate of Analysis (CoA)**, Material Safety Data Sheet (MSDS), and batch-specific documentation for traceability.
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.