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Medchemexpress LLC 4,7,10,13,16-pentaoxanonadec-18-ynoic acid | 1245823-51-1 | MFCD22201536 | ≥98.0% | 304.34 g·mol⁻¹ | C14H24O7 | 5 G
Supplier: Medchemexpress LLC HY1011575G
Propargyl-PEG5-acid is an alkyne-terminated polyethylene glycol linker with five ethylene glycol units used for assembling antibody-drug conjugates, PROTACs, and click-chemistry conjugations. It provides a hydrophilic spacer and reactive termini for modular bioconjugation.
- Alkyne terminus enables copper-catalyzed azide-alkyne cycloaddition (CuAAC) click reactions.
- Carboxylic acid terminus allows amide coupling to amines.
- Five-unit PEG spacer increases hydrophilicity and solubility.
- High purity (≥98.0% by NMR) suitable for synthesis applications.
- Moderate molecular weight (304.34 g·mol⁻¹) for predictable linker length.
- Colorless to light yellow liquid; store protected from light at low temperature.
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