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RU 26752

Cat. No. M8138
RU 26752 Structure
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Biological Activity

RU 26752 is a mineralocorticoid receptor antagonist.

Chemical Information
Molecular Weight 384.55
Formula C25H36O3
CAS Number 76676-33-0
Solubility (25°C) DMSO: soluble 20 mg/mL at 60 °C (warming up for 20 minutes)
Storage Powder          -20°C   3 years ;  4°C   2 years
In solvent       -80°C   6 months ;  -20°C   1 month
Conversion of different model animals based on BSA (PMID: 27057123)
Species Mouse Rat Rabbit Guinea pig Hamster Dog
Weight (kg) 0.02 0.15 1.8 0.4 0.08 10
Body Surface Area (m2) 0.007 0.025 0.15 0.05 0.02 0.5
Km factor 3 6 12 8 5 20
Animal A (mg/kg) = Animal B (mg/kg) multiplied by  Animal B Km
Animal A Km

For example, to modify the dose of Compound A used for a mouse (20 mg/kg) to a dose based on the BSA for a rat, multiply 20 mg/kg by the Km factor for a mouse and then divide by the Km factor for a rat. This calculation results in a rat equivalent dose for Compound A of 10 mg/kg.

References

[1] L Jacobson, et al. Corticosterone is a preferable ligand for measuring rat brain corticosteroid receptors: competition by RU 28362 and RU 26752 for dexamethasone binding in rat hippocampal cytosol

[2] H Coirini, et al. Further studies of brain aldosterone binding sites employing new mineralocorticoid and glucocorticoid receptor markers in vitro

[3] M Kalimi, et al. Effects of antimineralocorticoid RU 26752 on steroid-induced hypertension in rats

[4] J M Reul, et al. Binding characteristics of mineralocorticoid and glucocorticoid receptors in dog brain and pituitary

[5] M K Agarwal, et al. Antimineralocorticoids

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