Spermine(N3HHH)•3HCl-500mg$700.00 Spermine(N3HHH)•3HCl Product Catalog # Size Price (USD) Quantity Spermine(N3HHH)•3HCl-500mg 291912-500MG 500 mg $700.00 - Spermine(N3HHH)•3HCl-500mg quantity + For more size options, please click: Spermine(N3HHH)•3HCl 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.