SIGMA Ammonium persulfate, for molecular biology, for electrophoresis, =98%

Synonyms: AP; APS; Ammonium peroxodisulfate; Ammonium peroxydisulfate; PER

Formula Weight: 228.20

Formula: (NH₄)₂S₂O₈

Purity: ≥98%

CAS No.: 7727-54-0

Analysis Note: Tested for use in acrylamide polymerization.

Application: Ammonium persulfate forms oxygen free radicals in aqueous solution by a base-catalyzed mechanism¹. The bases most commonly used as catalysts are tertiary amines such as N,N,N′,N′-tetramethylethylenediamine (TEMED) or 3-dimethylaminopropionitrile (DMAPN). The free radicals will cause acrylamide and bis-acrylamide to polymerize to form a gel matrix, which can be used for separating macromolecules by size.

Packaging: 25, 100 g in poly bottle