Biotin-SLC CAS: 1864003-57-5 is a biotin linker with a extented uncharged spacer a carboxylic acid end group. The linker is membrane-permeable and used for intracellular biotinylation and labeling.
AxisPharm offers 5000+ PEG Linkers with high purity. Different kinds of PEG Reagents may be available by custom synthesis.
