6-Azidohexanoic Acid STP Ester is a water-friendly, amine-reactive agent for modifying proteins and antibodies. It hydrolyzes slower than its Sulfo-NHS Ester counterpart, enabling more effective labeling in aqueous solutions.
4-Sulfo-2,3,5,6-tetrafluorophenyl (STP) esters, another carboxylic acid derivative, react with primary amines to form stable amide bonds, similar to NHS esters. STP esters generally offer greater hydrolytic stability, leading to more efficient and consistent labeling.
Ideal for applications sensitive to organic co-solvents, 6-Azidohexanoic Acid STP Ester is commonly used to label cell surface proteins.
AxisPharm offers 5000+ PEG Linkers with high purity. Different kinds of PEG Reagents may be available by custom synthesis.
