mPEG9-CH2CH2COOH Product Catalog # Size Price (USD) Quantity mPEG9-CH2CH2COOH280807-1G1 g$386.00 - mPEG9-CH2CH2COOH-1g quantity + mPEG9-CH2CH2COOH280807-5G5 g$868.00 - mPEG9-CH2CH2COOH-5g quantity + Add to cart Description Molecular Formula: C22H44O12 Molecular Weight: 500.6