Mal-PEG2-NHS-500mg$448.00 Mal-PEG2-NHS Product Catalog # Size Price (USD) Quantity Mal-PEG2-NHS-500mg 282801-500MG 500 mg $448.00 - Mal-PEG2-NHS-500mg quantity + For more size options, please click: Mal-PEG2-NHS Add to cart Additional information Additional information Weight 0.0005 kg Size 500 mg For Research & Development use only. Not for testing and/or use on humans.