Spermine-NOTA Product Catalog # Size Price (USD) Quantity Spermine-NOTA331409-5MG5 mg$600.00 - Spermine-NOTA-5mg quantity + Spermine-NOTA331409-25MG25 mg$900.00 - Spermine-NOTA-25mg quantity + Spermine-NOTA331409-50MG50 mg$1,500.00 - Spermine-NOTA-50mg quantity + Spermine-NOTA331409-100MG100 mg$2,200.00 - Spermine-NOTA-100mg quantity + Add to cart Description Molecular Formula: C22H45N7O5 Molecular Weight: 487.7