MB 543 Alkyne is a fluroescent agent with a terminal propargyl group. The alkyne in this linker can react with azide-bearing compounds or biomolecules via copper catalyzed Click Chemistry reaction. MB 543 Alkyne is very hydrophilic, water-soluble orange fluorescent dye that has a maximal absorption of 543 nm and emission at 566 nm. The compound is also pH insensitivity from pH 3 to pH 10. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.