Boc-NH-PEG4-CH2CH2COOH Product Catalog # Size Price (USD) Quantity Boc-NH-PEG4-CH2CH2COOH280202-1G1 g$250.00 - Boc-NH-PEG4-CH2CH2COOH-1g quantity + Boc-NH-PEG4-CH2CH2COOH280202-5G5 g$750.00 - Boc-NH-PEG4-CH2CH2COOH-5g quantity + Add to cart Description CAS #: 756525-91-4 Molecular Formula: C16H31NO8 Molecular Weight: 365.5