Penicillin-Streptomycin 5/5 (100X)


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This antibiotic mixture contains 5,000 units/ml penicillin and 5,000 g/ml streptomycin. It is used in cell culture applications to prevent contamination.

Catalog #: B211
SizePriceCatalog #Quantity
100 ml$17.80B21110

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Penicillin is a beta-lactam antibiotic derived from Penicillium fungi. It interferes with the final stage of bacterial cell wall synthesis, the cross-linking of different peptidoglycan strands. Streptomycin is an aminoglycoside antibiotic produced by Streptomyces. It binds to the 30S subunit of the bacterial 70S ribosome and blocks the initiation complex of protein synthesis.


  • Spectrum: gram-positive and gram-negative bacteria
  • Contains 5,000 units/ml penicillin (base) and 5,000 g/ml streptomycin (base) in 0.85% saline, utilizing penicillin G sodium salt and streptomycin sulfate
  • Recommended concentration: 50-100 U of Penicillin, 50-100 ug of streptomycin (use 10-20 ml/L)
  • Stability at 37°C: 3 days
  • Form: Liquid
  • Product Size: 100 ml
  • Processing: 0.2μm filtered
  • Sterility Testing: Pass
  • Quality Testing: Pass
  • Suitability: Laboratory research applications
  • Shipping conditions: On dry ice
  • Storage conditions: -5 to -20°C, protected from light