Bis-PEG21-NHS ester

• Purity:

  98%

• Smiles:

  O=C(ON1C(CCC1=O)=O)CCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCC(ON2C(CCC2=O)=O)=O

• CAS Number:

  2221948-98-5