Bis- PEG4- NHS ester is a nonclaevable 4-unit PEG linker for antibody-drug-conjugation (ADC).

1314378-11-4

C20H28N2O12

488.44

Bis-PEG4-NHS ester

(< 1 mg/ml refers to the product slightly soluble or insoluble )
Powder: -20°C for 3 years
In solvent: -80°C for 2 years