4arm PEG Thiol. Hydrogel PEG. Selective for thiol groups under mild reaction conditions. Synonyms: 4arm-PEG-SH Linear Structural Formula: C(CH2O(CH2CH2O)nCH2CH2SH)4 Storage: -20C Application: Applications may include: bioconjugation, drug delivery, PEG hydrogel, crosslinker, and surface...