Commonly used antibiotics

Name Stock Solution Dilution

Ampicillin

50 mg/ml in H2O

1000 X

Carbenicillin 50 mg/ml in H2O
1000 X
Chloramphenicol 34 mg/ml in ethanol
200 X
Kanamycin 50 mg/ml in H2O
1000 X
Tetracyclin 5 mg/ml in 95% EtOH
100 X
Spectinomycin   50 mg/ml in 95% EtOH
1000 X