≥95%, White powder, Molecular weight: 2000/5000/10000/20000 Dalton.
Solubility: Organic solvent. Storage: -20℃, protected from light and moisture.
4-arm-PEG-Succinimidyl Succinate，4-armPEG-SS
SKU: 25322-68-3
4-arm PEG succinimidyl succinate ester (4-arm PEG-SS) is a multiarm PEG derivative with succinimidyl NHS active ester groups at each terminal of the 4 arms connected to onepentaerythritol core.