Overview
Putrescine (1,4-diaminobutane) is a naturally occurring diamine, first isolated from decaying animal tissue. It is a fundamental building block for polyamines like spermidine and spermine, which regulate cellular processes including DNA stabilization and apoptosis. Industrially, putrescine is synthesized from ornithine or via chemical processes like the hydrogenation of succinonitrile. Its bifunctional amine structure makes it valuable in organic synthesis and specialty chemical production.
Physical and Chemical Properties
Putrescine is a low-melting solid or liquid (depending on temperature) with a pungent odor reminiscent of rotting flesh—a trait reflected in its name (from Latin 'putrescere,' to decay). It is highly hygroscopic and forms stable salts with acids. As a base, it reacts vigorously with strong oxidizers and corrosive substances. Its water solubility and volatility require careful handling to avoid inhalation or skin contact. Analytical methods like HPLC and GC-MS are commonly used for purity assessment.
Main Applications
In biochemistry, putrescine is a precursor for polyamines, which are critical in cell proliferation, making it a research tool in oncology and microbiology. It also serves as a crosslinker in polymer production. Agriculturally, putrescine derivatives are explored as plant growth regulators to enhance stress tolerance. In pharmaceuticals, it’s used to synthesize drugs targeting parasitic infections and neurological disorders.
Safety and Storage
Putrescine is corrosive and can cause severe burns. Always use nitrile gloves, goggles, and respirators in poorly ventilated areas. Spills should be neutralized with dilute acetic acid and absorbed with inert material. Store in airtight containers under nitrogen or argon to prevent oxidation. Shelf life is typically 1-2 years when stored below 25°C. Transportation requires UN2735 (Corrosive Liquid, N.O.S.) classification.
B2B Procurement Guide
Bulk buyers should prioritize suppliers offering GC/MS-certified purity (≥98% for research, ≥95% for industrial use). Drum quantities (25-200 kg) often reduce unit costs. Key due diligence includes checking REACH/ISO compliance, batch documentation, and logistics support for temperature-sensitive shipments. Spot prices fluctuate with raw material (e.g., acrylonitrile) costs.
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