Methoxybenzoic acids and derivatives

Medchemexpress LLC Hydroxy-PEG4-acid | 5G

Hydroxy-PEG4-acid is a non-cleavable 4 unit PEG ADC linker used in the synthesis of antibody-drug conjugates (ADCs) Hydroxy-PEG4-acid is also a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]

Medchemexpress LLC Hydroxy-PEG4-acid 25g | 937188-59-5 | 266.29 g/mol | C11H22O7 | 25 G

Hydroxy-PEG4-acid is a PEG-based bifunctional linker with a terminal hydroxyl and a terminal carboxylic acid. It is designed for use as a non-cleavable four-unit PEG linker in conjugation chemistry, including antibody-drug conjugates (ADCs) and proteolysis-targeting chimeras (PROTACs).

• Non-cleavable four-unit PEG linker suitable for ADC and PROTAC synthesis.
• Terminal hydroxyl and carboxylic acid enable orthogonal functionalization.
• Molecular weight 266.29 g/mol and molecular formula C11H22O7.
• High purity (99.81%) for reliable conjugation performance.
• Available in 25 G pack size for preparative applications.

Medchemexpress LLC Hydroxy-PEG4-acid 10g | 937188-59-5 | 10 G

Hydroxy-PEG4-acid is a four-unit polyethylene glycol (PEG) linker with a terminal hydroxyl and a carboxylic acid, supplied as a purified reagent for bioconjugation and linker synthesis. It is suitable for use as a non-cleavable spacer in antibody-drug conjugates (ADCs), and as a PEG-based linker in PROTACs and related chemistries.

• Four-unit PEG spacer with terminal hydroxyl and carboxylic acid.
• High purity suitable for research use.
• Available in multiple pack sizes, including 10 G.
• Stable when stored at recommended temperatures for long-term use.
• Useful for ADC linker construction, PROTAC assembly, and general bioconjugation.