CAS Number 1334177-84-2 | |
Molecular Weight 498.60; single compound | |
Chemical Formula C₂₃H₄₆O₁₁ | |
Purity > 98% | |
Unit Size 100 mg, 1000 mg | |
Solubility Methylene chloride, Acetontrile, DMAC or DMSO. | |
Spacers dPEG® Spacer is 28 atoms and 32.1 Å | |
Storage Instructions -20°C; Always let come to room temperature before opening; be careful to limit exposure to moisture and restore under an inert atmosphere; stock solutions can be prepared with dry solvent and kept for several days (freeze when not in use). dPEG® pegylation compounds are generally hygroscopic and should be treated as such. This will be less noticeable with liquids, but the solids will become tacky and difficult to manipulate, if care is not taken to minimize air exposure. | |
Shipping Instructions Ambient |
Hydroxy-dPEG®₈-t-butyl ester
Hydroxy-dPEG®8-t-butyl ester, product number QBD-10185, is a versatile discrete PEG building block based upon a monodispersed polyethylene glycol (PEG) chain. A primary alcohol group terminates one end of the molecule. The opposite end is a propionic acid group protected as the tert-butyl ester. The terminal hydroxy group can be functionalized with various reactive groups to permit direct modification of surfaces, small molecules, or biomolecules.
Alternatively, the hydroxy group can react with isothiocyanates or active esters of carboxylic acids to form new conjugates. The tert-butyl ester deprotects with trifluoroacetic acid (TFA) or formic acid, exposing the terminal propionic acid, which can then be activated as the NHS or TFP ester or directly coupled to an amine using a suitable carbodiimide.
Price range: $164.00 through $301.00
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