Acid PEGs
Acid PEGs are carboxyl-functional PEG derivatives widely used in coupling reactions, activated ester synthesis, and bioconjugation workflows. Also known as carboxy PEG compounds, these reagents are ideal for attaching PEG chains to amines and biomolecules in drug delivery, diagnostics, and life science research.
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![Molecular structure for 4-[3-(2-Methoxyethoxy)propylamino]-4-oxobutanoic acid (CAS 184419-48-4), also known as Methoxyethoxypropyl succinamic acid, from Frontier Specialty Chemicals.](https://frontierspecialtychemicals.com/wp-content/uploads/2026/05/AMTGC1256-PA24-Square-510x510-1.png)
Acid PEGs4-[3-(2-Methoxyethoxy)propylamino]-4-oxobutanoic acid (99%)
$60.00 – $180.00 View productsCatalog#: AMTGC1256-PA24
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Acid PEGs14-Azido-3,6,9,12-tetraoxatetradecanoic acid (99%)
$140.00 – $1,250.00 View productsCatalog#: AMTGC721-AT20
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Acid PEGs1-Azido-13-oxo-3,6,9-trioxa-12-azahexadecan-16-oic acid (99%)
$120.00 – $360.00 View productsCatalog#:AMTGC1238-AT24
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Acid PEGs11-Azido-3,6,9-trioxaundecanoic acid (97%)
$66.00 – $540.00 View productsCatalog#: AMTGC502-AT19