| Size | Price | Stock | Qty |
|---|---|---|---|
| 5mg |
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| Other Sizes |
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| ln Vitro |
Merbarone (1-100 μM) has an IC50 of 10 μM and suppresses the growth of L1210 cells in a concentration-dependent manner [3]. Human topoisomerase IIα-catalyzed DNA relaxing is inhibited by merbarone (10-200 μM; 10 minutes) with an IC50 of around 40 μM [1]. Using an IC50 of around 50 μM, merbarone (25-200 μM; 6 min) inhibits DNA breakage mediated by tyrosine isomerase II [1]. Global inhibition of topoisomerase II-mediated DNA cleavage is achieved by merbarone (100 μM; 6 min) [1]. The binding of topoisomerase II to DNA is not affected by merbarone (100 μM; 6 min) [1]. Topoisomerase II-catalyzed ATP hydrolysis is not inhibited by merbarone (200 μM; 4–16 min) [1].
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|---|---|
| ln Vivo |
In P388 mouse leukemia, merbarone (50 mg/kg; daily intraperitoneal injection for 5 days) increases longevity (ILS) by 101% [2]. Mice treated orally with merbarone (124 mg/kg) for nine days showed antitumor activity [2].
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| References |
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| Additional Infomation |
Merbarone is a nonsedating derivative of thiobarbituric acid and a novel catalytic topoisomerase II inhibitor with antineoplastic activity. Merbarone interferes with DNA replication via binding directly to topoisomerase II at a domain that maybe shared by other topoisomerase II cleavage-enhancing agents, ex., etoposide. Its mechanism of action appears to be a novel one, since merbarone does not intercalate DNA nor stabilize DNA-topoisomerase II cleavable complexes.
|
| Molecular Formula |
C11H9N3O3S
|
|---|---|
| Molecular Weight |
263.271
|
| Exact Mass |
263.036
|
| CAS # |
97534-21-9
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| PubChem CID |
4990817
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| Appearance |
Pink to purple solid powder
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| Density |
1.51g/cm3
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| Index of Refraction |
1.688
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| LogP |
0.502
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| Hydrogen Bond Donor Count |
3
|
| Hydrogen Bond Acceptor Count |
4
|
| Rotatable Bond Count |
2
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| Heavy Atom Count |
18
|
| Complexity |
384
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| Defined Atom Stereocenter Count |
0
|
| InChi Key |
JARCFMKMOFFIGZ-UHFFFAOYSA-N
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| InChi Code |
InChI=1S/C11H9N3O3S/c15-8(12-6-4-2-1-3-5-6)7-9(16)13-11(18)14-10(7)17/h1-5,7H,(H,12,15)(H2,13,14,16,17,18)
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| Chemical Name |
4,6-dioxo-N-phenyl-2-sulfanylidene-1,3-diazinane-5-carboxamide
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| Synonyms |
Merbarone RLBN-1001 NSC-336628
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| HS Tariff Code |
2934.99.9001
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| Storage |
Powder -20°C 3 years 4°C 2 years In solvent -80°C 6 months -20°C 1 month |
| Shipping Condition |
Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)
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| Solubility (In Vitro) |
DMSO : ~12.5 mg/mL (~47.48 mM)
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|---|---|
| Solubility (In Vivo) |
Solubility in Formulation 1: 2.5 mg/mL (9.50 mM) in 10% DMSO + 40% PEG300 + 5% Tween80 + 45% Saline (add these co-solvents sequentially from left to right, and one by one), suspension solution; with sonication.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 400 μL PEG300 and mix evenly; then add 50 μL Tween-80 to the above solution and mix evenly; then add 450 μL normal saline to adjust the volume to 1 mL. Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH₂ O to obtain a clear solution. Solubility in Formulation 2: 2.5 mg/mL (9.50 mM) in 10% DMSO + 90% (20% SBE-β-CD in Saline) (add these co-solvents sequentially from left to right, and one by one), suspension solution; with ultrasonication. For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 900 μL of 20% SBE-β-CD physiological saline solution and mix evenly. Preparation of 20% SBE-β-CD in Saline (4°C，1 week): Dissolve 2 g SBE-β-CD in 10 mL saline to obtain a clear solution. (Please use freshly prepared in vivo formulations for optimal results.) |
| Preparing Stock Solutions | 1 mg | 5 mg | 10 mg | |
| 1 mM | 3.7984 mL | 18.9919 mL | 37.9838 mL | |
| 5 mM | 0.7597 mL | 3.7984 mL | 7.5968 mL | |
| 10 mM | 0.3798 mL | 1.8992 mL | 3.7984 mL |
*Note: Please select an appropriate solvent for the preparation of stock solution based on your experiment needs. For most products, DMSO can be used for preparing stock solutions (e.g. 5 mM, 10 mM, or 20 mM concentration); some products with high aqueous solubility may be dissolved in water directly. Solubility information is available at the above Solubility Data section. Once the stock solution is prepared, aliquot it to routine usage volumes and store at -20°C or -80°C. Avoid repeated freeze and thaw cycles.
Calculation results
Working concentration： mg/mL；
Method for preparing DMSO stock solution： mg drug pre-dissolved in μL DMSO (stock solution concentration mg/mL). Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug.
Method for preparing in vivo formulation:：Take μL DMSO stock solution, next add μL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O，mix and clarify.
(1) Please be sure that the solution is clear before the addition of next solvent. Dissolution methods like vortex, ultrasound or warming and heat may be used to aid dissolving.
(2) Be sure to add the solvent(s) in order.
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