mPEG24-Propyne Product Catalog # Size Price (USD) Quantity mPEG24-Propyne283907-250MG250 mg$480.00 - mPEG24-Propyne-250mg quantity + mPEG24-Propyne283907-1G1 g$1,015.00 - mPEG24-Propyne-1g quantity + Add to cart Description Synonym: mPEG24-CH2C≡CH Molecular Formula: C52H102O25 Molecular Weight: 1127.4