Description
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.
Caution Solutions should be sterile-filtered, not autoclaved, if sterile solution is necessary. Spermidine deaminates with time; solutions should be stored frozen. Prepare new solutions frequently.
Other Notes Polyamines: Review1; Inhibitor of arginine decarboxylase2,3; and DNA polymerase4

Properties
product line BioUltra
assay ≥99% （GC）
total impurities insoluble matter, passes filter test
refractive index n20/D 1.479（lit.）
pH 12.0-13.5 （25 °C, 1 M in H2O）
mp 23-25 °C
solubility H2O: soluble1 M at 20 °C, clear, colorless
density 0.925 g/mL at 25 °C（lit.）
anion traces chloride （Cl-）: ≤50 mg/kg
  sulfate （SO42-）: ≤50 mg/kg
cation traces Al: ≤5 mg/kg
  As: ≤0.1 mg/kg
  Ba: ≤5 mg/kg
  Bi: ≤5 mg/kg
  Ca: ≤10 mg/kg
  Cd: ≤5 mg/kg
  Co: ≤5 mg/kg
  Cr: ≤5 mg/kg
  Cu: ≤5 mg/kg
  Fe: ≤5 mg/kg
  K: ≤50 mg/kg
  Li: ≤5 mg/kg
  Mg: ≤5 mg/kg
  Mn: ≤5 mg/kg
  Mo: ≤5 mg/kg
  Na: ≤50 mg/kg
  Ni: ≤5 mg/kg
  Pb: ≤5 mg/kg
  Sr: ≤5 mg/kg
  Zn: ≤5 mg/kg
λ 1 M in H2O
UV absorption λ: 260 nm Amax: 0.1
  λ: 280 nm Amax: 0.05

中文名称: 亚精胺
中文同义词: 亚精胺盐酸盐;精脒;N-（3-氨基丙基）;N-（3-氨基丙基）-1,4-丁二胺;亚精胺;亚精胺 精咪;精三胺;亚精胺,99%
英文名称: Spermidine
英文同义词: 1,8-DIAMINO-4-AZAOCTANE;SPERMIDINE FREE BASE;SPERMIDINE;OMEGA-AMINOBUTYL-OMEGA-AMINOPROPYLAMINE;N1-（3-AMINOPROPYL）BUTANE-1,4-DIAMINE;N-（3-AMINOPROPYL）-1,4-BUTANDIAMINE;N-[3-AMINOPROPYL]-1,4-BUTANEDIAMINE;N-（3-AMINOPROPYL）-1,4-DIAMINOBUTANE
CAS号: 124-20-9
分子式: C7H19N3
分子量: 145.25