Aza-crowns can be synthesised from NH2-PEGn-OH.
We have only synthesised one azacrown because the size of the market is unknown, but we have already established a synthetic method and many of the intermediates of each length are in stock, so if you contact us, we can synthesise an azacrown of the size you require within two weeks.
| SCHEM No. | Structure | Compound Name | Price (JPY) | Purity | Stock(mg) |
|---|---|---|---|---|---|
| 06451 |  | Cyclic(-NH-PEG14-) | 91,200/0.1mg | >90% | 0 |
| 06452 |  | Cyclic(-NH-PEG13-) | 80,700/0.1mg | >90% | 0 |
| 06507 |  | Cyclic(-NH-PEG12-) | 80,700/0.1mg | >90% | 0 |
| 06506 |  | Cyclic(-NH-PEG11-) | 80,700/0.1mg | >90% | 0 |
| 06457 |  | Cyclic(-PEG4-N-)-CO-PEG11-COOH | 67,300/0.1mg | >95% | 13.3 |
| 06505 |  | Cyclic(-NH-PEG10-) | 80,700/0.1mg | >90% | 0 |
| 06504 |  | Cyclic(-NH-PEG9-) | 80,700/0.1mg | >90% | 0 |
| 06503 |  | Cyclic(-NH-PEG8-) | 80,700/0.1mg | >90% | 0 |
| 06502 |  | Cyclic(-NH-PEG7-) | 80,700/0.1mg | >90% | 0 |
| 06501 |  | Cyclic(-NH-PEG6-) | 80,700/0.1mg | >90% | 0 |
| 06376 |  | Cyclic(-NH-PEG5-) | 79,400/0.9mg | >90% | 6.0 |
| 06385 |  | Cyclic(-NH-PEG4-) | inquire | >90% | 0 |
| 06388 |  | Cyclic(-NH-PEG3-) | 96,800/0.1mg | >90% | 0 |
It is also possible to synthesise branched azacrowns via amide bonds or alkyl groups. These have not yet been synthesised, but the derivation from azacrowns is straightforward and ready to use.
Click here 
for a list of crown ethers with branches without N.
The length of the PEG chain, substitution for heteroatoms other than O, number of substitutions, etc., are limited to what is technically possible, but in the meantime,
please feel free to contact us for anything.
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