Molekula
18-Crown-6-Ether
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
18-Crown-6-Ether is a macrocyclic polyether used primarily as a phase-transfer catalyst and ionophore, particularly for complexing alkali metal cations like potassium. It is commonly employed in organic synthesis and supramolecular chemistry. Available in powder form with a purity of ≥98%, it has a molecular weight of 264.32 g/mol, a CAS number of 17455-13-9, and is stable at ambient temperature. Molekula supplies 18-Crown-6-Ether 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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25 g — £38.70 per pack ex VAT · £46.44 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 | Colourless transparent solid |
| Water | ≤0.5% |
| Assay | ≥98.0% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Neutral |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Vapour Pressure | 0.0000667 mmHg |
Source: PubChem CID 28557 (Haz-Map)
Identification
| Property | Value |
|---|---|
| SKU | 27395735 |
| CAS Number | 17455-13-9 |
| IUPAC Name | 1,4,7,10,13,16-hexaoxacyclooctadecane |
| EC Number | 241-473-5 |
| Molecular Formula | C12H24O6 |
| Molecular Weight | 264.32 |
| Exact Mass | 264.1573 |
| SMILES | C1COCCOCCOCCOCCOCCO1 |
| InChIKey | XEZNGIUYQVAUSS-UHFFFAOYSA-N |
| InChI | InChI=1S/C12H24O6/c1-2-14-5-6-16-9-10-18-12-11-17-8-7-15-4-3-13-1/h1-12H2 |
| PubChem CID | 28557 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 29329990 |
| Tariff Code | 2932990090 |
Safety & GHS
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Health Hazard
GHS07
Hazard statements
- H302 Harmful if swallowed
- H313 May be harmful in contact with skin
- H315 Causes skin irritation
- H319 Causes serious eye irritation
- H335 May cause respiratory irritation
Precautionary statements
- P261 Avoid breathing dust/fume/gas/mist/vapours/spray
- 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
Documents
Safety Data Sheets (SDS)
Available in English, English (US), French, German, Italian, Portuguese, 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
- 1,4,7,10,13,16-Hexanoxacyclooctadecane
- 1,4,7,10,13,16-Hexaoxacyclooctadecane (18-Crown-6)
- 18-Crown-6
- 18-Crown-6, pkg of 25 g
- 18-Crownether-6
- Crown ether 18-crown-6
- Ethylene oxide cyclic hexamer
- hexaoxacyclo-octadecane
- O4B
Frequently asked questions
What is 18-Crown-6-Ether used for?
It is commonly used as a phase-transfer catalyst in organic synthesis and for complexing alkali metal ions, especially potassium.
What is the chemical formula and molecular weight of 18-Crown-6-Ether?
The formula is C12H24O6 with a molecular weight of 264.32 g/mol.
How should 18-Crown-6-Ether be stored?
It should be stored at ambient temperature, protected from moisture and light.
What grade is available for 18-Crown-6-Ether?
Available in technical grade; specific higher grades may be available upon request.
Can Molekula supply 18-Crown-6-Ether in bulk?
Yes, bulk quantities are available—please contact our sales team for pricing and availability.
What documentation comes with an order of 18-Crown-6-Ether?
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.