mPEG11-CH2CH2COOH Product Catalog # Size Price (USD) Quantity mPEG11-CH2CH2COOH280809-1G1 g$493.00 - mPEG11-CH2CH2COOH-1g quantity + mPEG11-CH2CH2COOH280809-5G5 g$1,109.00 - mPEG11-CH2CH2COOH-5g quantity + Add to cart Description CAS #: 125220-94-2 Molecular Formula: C26H52O14 Molecular Weight: 588.7