HO-PEG5-tBu Product Catalog # Size Price (USD) Quantity HO-PEG5-tBu280503-5G5 g$555.00 - HO-PEG5-tBu-5g quantity + HO-PEG5-tBu280503-25G25 g$1,347.00 - HO-PEG5-tBu-25g quantity + Add to cart Description CAS #: 850090-09-4 Molecular Formula: C17H34O8 Molecular Weight: 366.5