Description
Putrescine attacks s-adenosyl methionine and converts it to spermidine. Spermidine, in turn, attacks another s-adenosyl methionine and converts it to spermine.  Putrescine is synthesized in small quantities by healthy living cells by the action of ornithine decarboxylase. The polyamines, of which putrescine is one of the simplest, appear to be growth factors necessary for cell division. 
 Product Specifications
 Putrescine, free base
 1,4-Diaminobutane Tetramethylenediamine 
 MOLECULAR BIOLOGY GRADE 
 Formula: C4H12N2 
 MW: 88.15 g/mol 
 Color: Colorless, clear liquid or crystalline solid substance (Fp: approx. 26 °C) 
 Storage/Handling: Store in 4°C. Protect from light. 
 PubChem Chemical ID: 1045