Rifampicin, 500 mg, 500 mg
Molar mass (M) 822,94 g/mol
Melting point (mp) 188 °C
Storage temp. +4 °C
CAS No. [13292-46-1]
Art. No. 4163.3: A stock solution with a concentration of 100 mg/ml can be prepared directly by adding 5 ml chloroform or DMSO.
excl. VAT. | 500 mg per Pack Qty.
Art. No. 4163.1
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Rifampicin ≥90 %, for biochemistry
Rifampicin inhibits bacterial DNA-dependent RNA-polymerase and consequently prevents transcription. Its spectrum of activity is strictly bacterial (the eukaryotic DNA-dependent RNA-polymerase can only be inhibited at extremely high concentrations) and rifampicin is particularly very effective against mycobacteria. Enterbacteria, acinetobacteria and pseudomonades are resistant against rifampicin. The resistance-mediating genes can be applied as selection markers in molecular biology.
Light-sensitive. Store in the dark!Stock solution: 100 mg/ml in chloroform or DMSO, 15 mg/ml in methanol, 1 mg/ml in water (pH 7,3)Store stock solution at -20 °C, is stable for approx. 2 weeks in DMSO when stored in the dark at 4 °CWorking concentration: 20-200 µg/ml
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|Order No.||Pack Qty.||Pack.||Packaging||Price||Quantity|
|4163.1||500 mg||glass||500 mg||
|4163.2||1 g||glass||1 g||
|4163.3||500 mg||glass||500 mg in a 10 ml glas bottle||
Delivery date currently unknown
|Assay (HPLC)||≥90 %|
|Solution (5 % in chloroform)||orange to dark brown|
|Loss on drying (60 °C, vacuum)||≤2 %|
|Sulphated ash||≤0.1 %|