Penicillin (C16H17N2NaO4S; MW 356.40) is a β-lactam antibiotic from Penicillium chrysogenum. Penicillin is predominantly active against Gram-positive bacteria.
mechanism: Inhibits the last cell wall synthesis, connects peptidoglycan strands by irreversibly interacting with transpeptidase

Streptomycin-sulfate ((C21H39N7O12)2-3H2SO4; MW 1457.40) is an aminoglycoside antibotic derived from Streptomyces griseus. Streptomycin-sulfate is active against Gram-negative bacteria and Mycobacteria.
mechanism: Inhibits initiation of the protein biosynthesis

Instructions for use for the antibiotic solutions by Biochrom GmbH:
Antibiotic solutions are 100x concentrated and dissolved in WFI (Dosing: 1 ml antibiotic/100 ml medium)

Penicillin/Streptomycin, liquid

10000 U/ml /10000 µg/ml

Product details +

Storage: 36 months at -20 °C

Instructions for use: antibiotic solutions are 100x concentrations and have been dissolved in WFI (quantity used: 1 ml per 100 ml medium).

A substitute is offered under the article number P0781 at Sigma-Aldrich   

Unit price
A 2212
on request **

** Item needs dry ice when shipped.

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New: FAQ antibiotics


Up-to-date overview regarding mechanism of action, performance and working concentration

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Antibiotic solutions


Antibiotic solutions are 100x concentrated. If not otherwise indicated, the above antibiotics are dissolved in physiological saline.

Dosing: 1 ml antibiotic/100 ml medium