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Medchemexpress LLC Mal-PEG24-NHS ester | 2226733-37-3 | MFCD11041160 | 95.0% | 1394.55 | C62H111N3O31 | 5 MG
Supplier: Medchemexpress LLC HY1358195MG
Mal-PEG24-NHS ester is a bifunctional polyethylene glycol (PEG) linker containing a maleimide and an N-hydroxysuccinimide (NHS) ester. It is designed for bioconjugation and PROTAC synthesis, enabling selective coupling between thiol and primary amine functionalities while improving solubility and molecular flexibility. The compound is an oil (colorless to light yellow) with molecular weight 1394.55 and formula C62H111N3O31.
- Enables selective maleimide-thiol coupling to modify cysteine residues.
- Provides NHS-ester reactivity for efficient labeling of primary amines.
- PEG24 spacer increases solubility and reduces steric hindrance.
- Suitable for assembling heterobifunctional molecules such as PROTACs.
- Stable under sealed storage at -20 °C; in solvent, store at -80 °C for long-term stability.
- Supplied in small research quantities suitable for synthetic applications.
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