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PR-104A is a corresponding alcohol that is systemically converted from PR-104 and a hypoxia-targeted anticancer agent with IC50 of 153 and 60 μM for wild-type CHO AA8 under aerobic and anoxic conditions. PR-104A itself showed modest but significant selectivity for anoxic cells. In a study, the estimated unbound human clearance of PR-104A was 211 L/h/70 kg, with a steady state unbound volume of 105 L/70 kg. The size equivalent unbound PR-104A clearance was 2.5 times faster in dogs, 0.78 times slower in rats and 0.63 times slower in mice, which may reflect reported species differences in PR-104A O-glucuronidation. PR-104A is glucuronidated by UGT2B7 with high specificity and appears to make a major contribution to clearance of PR-104A in humans.
| Molecular Weight | 514.33 |
| Formula | C15H22BrN4O9S |
| CAS Number | 680199-06-8 |
| Solubility (25°C) | DMSO |
| Storage |
Powder -20°C 3 years ; 4°C 2 years In solvent -80°C 6 months ; -20°C 1 month |
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