mPEG12-CH2CH2COOH Product Catalog # Size Price (USD) Quantity mPEG12-CH2CH2COOH280810-1G1 g$555.00 - mPEG12-CH2CH2COOH-1g quantity + mPEG12-CH2CH2COOH280810-5G5 g$1,250.00 - mPEG12-CH2CH2COOH-5g quantity + Add to cart Description Molecular Formula: C28H56O15 Molecular Weight: 632.7