APDye 488 Azide is a bright, green-fluorescent, azide-activated probe that reacts with terminal alkynes via a copper-catalyzed click reaction (CuAAC). It also reacts with strained cyclooctynes via a copper-free click chemistry reaction to form a stable triazole and does not require a Cu-catalyst or elevated temperatures.
AxisPharm offers 5000+ PEG Linkers with high purity. Different kinds of PEG Reagents may be available by custom synthesis.