| Category | Homobifunctional PEG |
| Shipping | Ambient temperature |
| Storage | -20°C |
Bis-PEG-TFP ester, MW 5K
Cat No.: BPG-4555
4.5 
Bis-PEG-TFP ester, MW 5,000 is an amine reactive PEG active ester. Similar to NHS-ester compound, it is used for PEGylation due to its reactivity with primary amine. However, TFP ester offers more stability (against hydrolysis) during conjugation resulting in higher coupling efficiency. Please contact us for GMP-grade inquiries.
Structure of Bis-PEG-TFP ester, MW 5K
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