SPDP-Gly-Gly-methoxy is an amine and thiol reactive crosslinker, which is a linker with SPDP and methyl ester moieties. It is also membrane permeable, allowing it to participate in cross-linking reactions within cells.
AxisPharm offers 5000+ PEG Linkers with high purity. Different kinds of PEG Reagents may be available by custom synthesis.