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  • 345810 - G 418 Sulfate, Cell Culture Tested - CAS 108321-42-2 - Calbiochem

345810 Millipore

G 418 Sulfate, Cell Culture Tested - CAS 108321-42-2 - Calbiochem

G418 also known as Geneticin® is an aminoglycoside antibiotic related to Gentamicin. Used as a selective agent in transfection of eukaryotic cells. Has highest potency ≥730 µg/mg and purity ≥98%.

Synonym: G418, G 418, NMD Inhibitor I, G418, G 418, NMD Inhibitor I

  • CAS Number 108321-42-2

  • Empirical Formula (Hill Notation) C20H40N4O10 · 2H2SO4

  • Molecular Weight 496.55



Related Categories Antibiotics, Bioactive Small Molecules, Biochemicals and Reagents, Cell Biology, Cell Culture,
packaging   1 gm in Glass bottle (345810-1GM)
  100 gm in Glass bottle (345810-100GM)
  25 gm in Plastic ampoule (345810-25GM)
  250 mg in Plastic ampoule (345810-250MG)
  5 gm in Glass bottle (345810-5GM)
  500 mg in Plastic ampoule (345810-500MG)
color   white
form   powder
mfr. no.   Calbiochem
shipped in   ambient
solubility   water: 100 mg/mL, clear, colorless
storage condition   OK to freeze
purity   ≥98% by TLC
impurities   Ammonia: ≤1.0%; heavy metals: ≤100 ppm
storage conditions   +15C to +30C


General description

Also available as a sterile-filtered aqueous solution (Cat. No. 345812), a sterile filtered solution in 100 mM HEPES (Cat. No. 508940), and a sterile-filtered solution PBS (Cat. No. 509227).


1, 100, 5 gm in Glass bottle

25 gm in Plastic ampoule

250, 500 mg in Plastic ampoule


Following reconstitution, sterilize by filtration through a 0.22 µm or 0.45 µm pore size filter, aliquot and freeze (-20°C) for long term storage or refrigerate (4°C) for short-term storage. Sterile stock solutions are stable for up to 1 year at -20°C.


Standard Handling (A)

Safety & Documentation

Safety Information



Certificate of Analysis

Protocols & Articles


Antibiotic Kill Curve

Antibiotic kill curve is a dose response experiment in which mammalian cells are subjected to increasing amounts of selection antibiotic to determine the minimum concentration of an antibiotic that c...
Keywords: Antibiotics, Cell culture, Evaporation, Transfection

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