mPEG4-NHS-1g$297.00 mPEG4-NHS Product Catalog # Size Price (USD) Quantity mPEG4-NHS-1g 281302-1G 1 g $297.00 - mPEG4-NHS-1g quantity + For more size options, please click: mPEG4-NHS Add to cart Additional information Additional information Weight 0.001 kg Size 1 g For Research & Development use only. Not for testing and/or use on humans.