mPEG24-NHS-250mg$499.00 mPEG24-NHS Product Catalog # Size Price (USD) Quantity mPEG24-NHS-250mg 281312-250MG 250 mg $499.00 - mPEG24-NHS-250mg quantity + For more size options, please click: mPEG24-NHS 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.