Polyethylene Glycol (PEGs & PEOs)

Mal-PEG4-Lys(t-Boc)-NH-m-PEG24 is a PEG derivative containing a maleimide end group and a t-Boc protected lysine. The maleimide can react with thiol groups between a pH range of 6.5 to 7.5. The t-Boc can be removed under acidic conditions. The

Mal-PEG4-Lys(t-Boc)-NH-m-PEG24 is a PEG derivative containing a maleimide end group and a t-Boc protected lysine. The maleimide can react with thiol groups between a pH range of 6.5 to 7.5. The t-Boc can be removed under acidic conditions. The

Mal-PEG4-Lys(TFA)-NH-m-PEG24.

Mal-PEG4-Lys(TFA)-NH-m-PEG24.

Mal-PEG4-Lys(TFA)-NH-m-PEG24.

Mal-PEG4-PFP is a PEG derivative with maleimide and PFP moieties. Maleimides are thiol reactive between pH 6.5 and 7.5, forming thiolester bonds. The PFP is amine reactive and forms stable amide bonds. PFP was also found to be less susceptible

Mal-PEG4-PFP is a PEG derivative with maleimide and PFP moieties. Maleimides are thiol reactive between pH 6.5 and 7.5, forming thiolester bonds. The PFP is amine reactive and forms stable amide bonds. PFP was also found to be less susceptible

Mal-PEG4-PFP is a PEG derivative with maleimide and PFP moieties. Maleimides are thiol reactive between pH 6.5 and 7.5, forming thiolester bonds. The PFP is amine reactive and forms stable amide bonds. PFP was also found to be less susceptible

Mal-PEG4-t-butyl ester is a PEG derivative containing a maleimide group and a t-butyl ester group. The hydrophilic PEG spacer increases solubility in aqueous media. The t-butyl protected carboxyl group can be deprotected under acidic conditions. The

Mal-PEG4-t-butyl ester is a PEG derivative containing a maleimide group and a t-butyl ester group. The hydrophilic PEG spacer increases solubility in aqueous media. The t-butyl protected carboxyl group can be deprotected under acidic conditions. The

Mal-PEG4-t-butyl ester is a PEG derivative containing a maleimide group and a t-butyl ester group. The hydrophilic PEG spacer increases solubility in aqueous media. The t-butyl protected carboxyl group can be deprotected under acidic conditions. The

Mal-PEG4-trimethylammonium chloride.