Lapachol is a naturally occurring naphthoquinone and orally active, potent inhibitor of dihydroorotic acid dehydrogenase (DHODH).Lapachol has immunosuppressive activity against lymphocytes by inhibiting pyrimidine synthesis through direct blockade of DHODH activity. In addition, Lapachol is a vitamin K antagonist with antitumor and antileishmanial activity that inhibits DNA and RNA synthesis in tumor cells.
| Molecular Weight | 242.00 |
| Formula | C15H14O3 |
| CAS Number | 84-79-7 |
| Form | Solid |
| Solubility (25°C) | DMSO 66.67 mg/mL |
| Storage | 4°C |
| 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.
| Related DHODH Products |
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| DHODH-IN-13
DHODH-IN-13 is a hydroxyfurazan analog of A771726 and a dihydroorotic acid dehydrogenase (DHODH) inhibitor with an IC50 of 4.3 μM for hepatic DHODH in rats.DHODH-IN-13 can be used in rheumatoid arthritis-related studies. |
| DHODH-IN-12
DHODH-IN-12 is a Leflunomide derivative and a weak inhibitor of dihydroorotic acid dehydrogenase (DHODH), with a pKa of 5.07. |
| hDHODH-IN-5
hDHODH-IN-5 is a human dihydroorotic acid dehydrogenase (DHODH) inhibitor with an IC50 of 0.91 μM. hDHODH-IN-7 induces differentiation of acute myeloid leukemia cells. |
| DHODH-IN-8
DHODH-IN-8 is an inhibitor of human and Plasmodium falciparum dihydroorotic acid dehydrogenase (DHODH) with IC50s of 0.13 μM and 47.4 μM and Ki of 0.016 μM and 5.6 μM, respectively.DHODH-IN-8 exhibits antimalarial activity. |
| DHODH-IN-14
DHODH-IN-14 is a hydroxyfurazan analog of A771726 and a dihydroorotic acid dehydrogenase (DHODH) inhibitor with an IC50 of 0.49 μM for hepatic DHODH in rats.DHODH-IN-14 can be used in rheumatoid arthritis-related studies. |
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