Tetra(3-methoxy-N-(PEG2-prop-2-ynyl)propanamide) Methane is a 4-branched molecule with propargyl groups that can be linked to azide-containing biomolecules via Click Chemistry. The hydrophilic PEG linker increases the water solubility of the compound. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.