A popular non-cleavable, membrane-impermeable, water-soluble DSS analog Category: Amine-reactive Reactive Groups: sulfo-NHS-ester Reactive Toward: amino grops Water Soluble: Yes Membrane Permeable: No Cleavability: Non-cleavable MW: 572.43

Sulfo EMCS, [N-(E-malemidocaproyloxy)-sulfosuccinimide] Primary amine reactive Sulfhydryl reactive Water soluble

Sulfo MPS aleimidopropionic acid N-hydroxysulfosuccinimide ester Sulfhydryl reactive Primary amine reactive Water soluble M.W. = 381.27