mPEG24-Propyne-250mg$480.00 mPEG24-Propyne Product Catalog # Size Price (USD) Quantity mPEG24-Propyne-250mg 283907-250MG 250 mg $480.00 - mPEG24-Propyne-250mg quantity + For more size options, please click: mPEG24-Propyne Add to cart Additional information Additional information Weight 0.00025 kg Size 250 mg For Research & Development use only. Not for testing and/or use on humans.