Isopimaric acid is active against MDR and MRSA strains of S. aureus which are becoming increasingly resistant to antibiotics, the minimum inhibitory concentrations (MIC) are 32-64 microg/mL . Isopimaric acid is also possible that an antagonistic interaction with reserpine may render the antibiotics inactive.

5835-26-7

C20H30O2

302.45

(< 1 mg/ml refers to the product slightly soluble or insoluble )
Powder: -20°C for 3 years
In solvent: -80°C for 2 years