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4,5-Dimethoxycanthin-6-one is an alkaloid isolated from Picrasma quassioides BENNET (Simaroubaceae) with antimicrobial activity against Staphylococcus aureus and its drug-resistant strains. It is a potent, non-competitive inhibitor of CYP1A2-mediated phenacetin O-deethylation (IC50: 1.7 μM, Ki: 2.6 μM) and a potent inhibitor of cyclic adenosine monophosphate (cAMP) phosphodiesterase. Additionally, it exhibits cytotoxicity to tumor cell lines U937 and HepG2.

| Pack Size | Price | USA Warehouse | Global Warehouse | Quantity |
|---|---|---|---|---|
| 1 mg | $73 | - | In Stock | |
| 5 mg | $179 | - | In Stock | |
| 10 mg | $313 | - | In Stock | |
| 25 mg | $528 | - | In Stock | |
| 50 mg | $752 | - | In Stock | |
| 1 mL x 10 mM (in DMSO) | $228 | - | In Stock |
| Description | 4,5-Dimethoxycanthin-6-one is an alkaloid isolated from Picrasma quassioides BENNET (Simaroubaceae) with antimicrobial activity against Staphylococcus aureus and its drug-resistant strains. It is a potent, non-competitive inhibitor of CYP1A2-mediated phenacetin O-deethylation (IC50: 1.7 μM, Ki: 2.6 μM) and a potent inhibitor of cyclic adenosine monophosphate (cAMP) phosphodiesterase. Additionally, it exhibits cytotoxicity to tumor cell lines U937 and HepG2. |
| Targets&IC50 | CYP1A2:2.6 μM (Ki), CYP1A2:1.7 μM |
| In vitro | 4,5-Dimethoxycanthin-6-one demonstrates strong and uncompetitive inhibition against CYP1A2-mediated phenacetin O-deethylation with an IC50 value of 1.7μM and a Ki value of 2.6 μM.[2] |
| Synonyms | Methylnigakinone |
| Molecular Weight | 280.28 |
| Formula | C16H12N2O3 |
| Cas No. | 18110-87-7 |
| Smiles | COc1c(OC)c(=O)n2c3ccccc3c3ccnc1c23 |
| Relative Density. | 1.40 g/cm3 (Predicted) |
| Storage | store at low temperature,keep away from direct sunlight | Powder: -20°C for 3 years | In solvent: -80°C for 1 year | Shipping with blue ice/Shipping at ambient temperature. | |||||||||||||||||||||||||
| Solubility Information | DMSO: 9.0 mg/mL (32.1 mM), Sonication is recommended. | |||||||||||||||||||||||||
| In Vivo Formulation | 10% DMSO+40% PEG300+5% Tween 80+45% Saline: 1 mg/mL (3.57 mM), Sonication is recommended. Please add the solvents sequentially, clarifying the solution as much as possible before adding the next one. Dissolve by heating and/or sonication if necessary. Working solution is recommended to be prepared and used immediately. The formulation provided above is for reference purposes only. In vivo formulations may vary and should be modified based on specific experimental conditions. | |||||||||||||||||||||||||
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DMSO
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