mPEG7-OH Product Catalog # Size Price (USD) Quantity mPEG7-OH281405-5G5 g$342.00 - mPEG7-OH-5g quantity + mPEG7-OH281405-25G25 g$770.00 - mPEG7-OH-25g quantity + Add to cart Description Synonym: Heptaethylene Glycol Monomethyl Ether CAS #: 4437-01-8 Molecular Formula: C15H32O8 Molecular Weight: 340.4