Synonym ： 1,8-Diamino-4-azaoctane      N-(3-Aminopropyl)-1,4-diaminobutane

Molecular Formula ： NH 2 (CH 2 ) 3 NH(CH 2 ) 4 NH 2

Molecular Weight ： 145.25

CAS Number ： 124-20-9

Descriptions ：

Caution………………………………………Solutions should be sterile-filtered, not autoclaved, if sterile solution is necessary. Spermidine deaminates with time; solutions should bestored frozen. Prepare new solutions frequently.

Biochem/physiol Actions…………………Inhibits neuronal nitric oxide synthase (nNOS). Binds and precipitates DNA; may be used for purification of DNA binding proteins. Stimulates T4 polynucleotide kinase activity.

Properties ：

grade ……………………………………………for molecular biology

assay ……………………………………………≥ 98% (GC)

refractive index …………………………………n20/D 1.479(lit.)

density……………………………………………0.925 g/mL at 25 °C(lit.)

foreign activity …………………………………DNase, RNase, and protease, none detected

storage temp……………………………………2-8°C