H2N-PEG4-tBu Product Catalog # Size Price (USD) Quantity H2N-PEG4-tBu280403-1G1 g$200.00 - H2N-PEG4-tBu-1g quantity + H2N-PEG4-tBu280403-5G5 g$600.00 - H2N-PEG4-tBu-5g quantity + Add to cart Description CAS #: 581065-95-4 Molecular Formula: C15H31NO6 Molecular Weight: 321.4