G418 sulfate is an aminoglycosidic antibiotic, it acts by interfering with protein
synthesis and is usually used as an agent for selection of cultured cells
expressing a gene that confers resistance to G418. It is toxic to both
prokaryotic and eukaryotic cells. It is commonly used in molecular biology
studies.
Specification
Formula: C20H40N4O10 ·2H2SO4
Formula weight: 692.71
Appearance: white powder
Specific Rotation: +104o ~ +121o
Moisture: 10%
Absorbance:
<0.015 (280nm,1mg/ml), <0.1 (570nm, 100mg/ml)
Potency: 735 ug/mg
Directions for use
The optimal concentration of G418 required to select and maintain cells must
be determined experimentally for any given set of growth conditions and
should be re-established when those conditions are altered. In
general, concentrations of 400 to 1100 ug/ml have been used for selection of
mammalian cells, and concentrations of 200 to 400 ug/ml are used for
maintenance. G418 may be dissolved or diluted in the culture medium.
Storage conditions
Dry powder should be stored at room temperature, and solution at -20℃.