Spermine(HBBH) Product Catalog # Size Price (USD) Quantity Spermine(HBBH)291906-500MG500 mgPlease InquirePlease InquireSpermine(HBBH)291906-1G1 gPlease InquirePlease InquireSpermine(HBBH)291906-5G5 gPlease InquirePlease Inquire Description Synonym: N4,N9-di-Boc-spermine CAS #: 177213-61-5 Molecular Formula: C20H42N4O4 Molecular Weight: 402.6