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Amino PEG acid, also named as amine PEG acid, is a class of crosslinkers that has an amino group on one end of the PEG spacer and an acid on the other.

Peg amine acid readily reacts with biomolecules with activated esters, such as NHS ester, PFP ester and TFP ester, to form pegylated biomolecules with a PEG elongated acid functional group. The acid can be further derivatized by coupling reactions with other biomolecules with amine functional groups.

The amino group can be also selectively protected to form Boc and Fmoc amino acid. The resulting crosslinker can be used for bioconjucation in a inverse order – acid coupling, de-protection of amine and amine coupling.

Catalog# Name Structure M.W. Purity Pricing
amino peg acid
AP12330t-Boc-aminooxy-PEG3-propargyl303.36≥95% Pricing
AP12136Amino-PEG1-acid133.15≥95% Pricing
AP12137Amino-PEG2-acid177.2≥95% Pricing
AP12138Amino-PEG3-acid221.25≥95% Pricing
AP12139Amino-PEG5-acid309.36≥95% Pricing
AP12140Amino-PEG9-acid485.57≥95% Pricing
AP12141Amino-PEG10-acid529.62≥95% Pricing
AP12142Amino-PEG12-acid617.73≥95% Pricing
AP12143Amino-PEG14-acid705.84≥95% Pricing
AP12144Amino-PEG16-acid793.94≥95% Pricing
AP12145Amino-PEG20-acid970.15≥95% Pricing
AP12146Amino-PEG23-acid1102.31≥95% Pricing
AP12147Amino-PEG24-acid1146.37≥95% Pricing
AP12045Aminooxy-PEG8-methane HCl salt399.48≥95% Pricing
AP12051Aminooxy-PEG3-NH-Boc308.38≥95% Pricing
AP10955Bromoacetamido-PEG4-NHS483.31≥95% Pricing
AP10585Methyl 2-amino-3-(4-(2-hydroxyethoxy)phenyl)propanoate239.27≥95% Pricing
AP12380Carbamic-acid,[2-[2-(2-hydroxyethoxy)ethoxy]ethyl],9H-fluoren-9-ylmethyl-ester-(9CI)371.43≥95% Pricing

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