mPEG9-CH2COOH Product Catalog # Size Price (USD) Quantity mPEG9-CH2COOH280902-1G1 g$675.00 - mPEG9-CH2COOH-1g quantity + mPEG9-CH2COOH280902-5G5 g$1,688.00 - mPEG9-CH2COOH-5g quantity + Add to cart Description CAS #: 405518-55-0 Molecular Formula: C21H42O12 Molecular Weight: 486.6