Overview
Spermine is a naturally occurring polyamine critical for cellular functions such as growth, proliferation, and gene expression regulation. It is synthesized from spermidine in eukaryotic cells and is present in tissues like the prostate and semen. Industrially, spermine is extracted or chemically synthesized for applications in biotechnology and pharmaceuticals. As a tetraamine, spermine interacts with nucleic acids, stabilizing DNA and RNA structures. Its role in cell cycle regulation makes it valuable in research, particularly in studies involving apoptosis and cancer therapeutics.
Physical and Chemical Properties
Spermine appears as a white crystalline powder with a melting point of 28-30°C. It is highly soluble in water and polar solvents like ethanol, facilitating its use in aqueous biological systems. The compound's four amine groups contribute to its alkaline nature and ability to bind anions. Its molecular weight of 202.34 g/mol and stability under refrigerated storage (2-8°C) make it suitable for long-term laboratory use. However, exposure to light or moisture may degrade its purity, necessitating airtight packaging.
Main Applications
In biotechnology, spermine is used to condense DNA for transfection studies and viral vector production. It enhances the efficiency of gene delivery systems due to its nucleic acid-binding properties. Pharmaceutical formulations incorporate spermine as a stabilizer for mRNA vaccines and lipid nanoparticles. The compound also serves as a biomarker for cancer research, where elevated spermine levels correlate with tumor progression. Additionally, it is a component of cell culture media, supporting in vitro cell growth for regenerative medicine.
Safety and Storage
Spermine is classified as an irritant, requiring gloves and eye protection during handling. Inhalation of dust or contact with skin may cause inflammation. Spills should be neutralized with dilute acid and cleaned promptly. For storage, keep containers sealed in a cool (2-8°C), dark environment to prevent degradation. Large-scale industrial users should prioritize fire safety, as polyamines can combust under extreme conditions.
B2B Procurement Guide
Industrial buyers should specify purity grades (e.g., ≥98% for research) and request COA (Certificate of Analysis) to validate CAS 71-44-3. Bulk orders (kilograms) typically cost $50-$100 per gram, with discounts for GMP-certified batches. Procurement channels include specialty chemical distributors like Sigma-Aldrich and TCI. Lead times vary; prioritize suppliers with cold-chain logistics for temperature-sensitive shipments. For regulatory compliance, ensure SDS documentation aligns with local safety standards.
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