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| 5mg |
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| 25mg |
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| 100mg |
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Purity: ≥98%
(R)-(+)-Bay-K-8644, the R-isomer of Bay-K-8644, is a novel and potent a calcium channel inhibitor/blocker that inhibits Ba2+ currents (IBa) (IC50=975 nM). (+/-)-Bay K 8644, a conventional racemic mixture of Bay K 8644, is widely used as an L-type Ca(2+) channel agonist.
| ln Vitro |
(R)-(+)-Bay-K-8644 is a conventional racemic combination that is frequently employed as an L-type Ca2+ channel agonist (Bay K 8644). With (R)-(+)-Bay-K-8644 functioning as an antagonist and S(-)-Bay K 8644 working as an agonist, each optical isomer has opposing effects on IBa. Ba2+ current (IBa) is inhibited by (R)-(+)-Bay-K-8644 (IC50=975 nM). Applying (R)-(+)-Bay-K-8644 (0.5 μM) suppressed IBa to 71±10% of control. when (R)-(+)-Bay-K-8644IBa is present[1]. An inhibitor of calcium channels is (R)-(+)-Bay-K-8644 [2].
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| References |
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| Additional Infomation |
(R)-Bay-K-8644 is a methyl 2,6-dimethyl-5-nitro-4-[2-(trifluoromethyl)phenyl]-1,4-dihydropyridine-3-carboxylate in which the 4-position has (R)-configuration. It is an enantiomer of a (S)-Bay-K-8644.
A dihydropyridine derivative, which, in contrast to NIFEDIPINE, functions as a calcium channel agonist. The compound facilitates Ca2+ influx through partially activated voltage-dependent Ca2+ channels, thereby causing vasoconstrictor and positive inotropic effects. It is used primarily as a research tool. |
| Molecular Formula |
C16H15N2O4F3
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|---|---|
| Molecular Weight |
356.2965
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| Exact Mass |
356.098
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| CAS # |
98791-67-4
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| Related CAS # |
Bay K 8644;71145-03-4;(S)-(-)-Bay-K-8644;98625-26-4
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| PubChem CID |
6604881
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| Appearance |
Light yellow to yellow solid powder
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| Density |
1.4±0.1 g/cm3
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| Boiling Point |
429.2±45.0 °C at 760 mmHg
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| Flash Point |
213.4±28.7 °C
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| Vapour Pressure |
0.0±1.0 mmHg at 25°C
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| Index of Refraction |
1.543
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| LogP |
2.39
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| Hydrogen Bond Donor Count |
1
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| Hydrogen Bond Acceptor Count |
8
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| Rotatable Bond Count |
3
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| Heavy Atom Count |
25
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| Complexity |
634
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| Defined Atom Stereocenter Count |
1
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| SMILES |
CC1=C([C@H](C(=C(N1)C)[N+](=O)[O-])C2=CC=CC=C2C(F)(F)F)C(=O)OC
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| InChi Key |
ZFLWDHHVRRZMEI-UHFFFAOYSA-N
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| InChi Code |
InChI=1S/C16H15F3N2O4/c1-8-12(15(22)25-3)13(14(21(23)24)9(2)20-8)10-6-4-5-7-11(10)16(17,18)19/h4-7,13,20H,1-3H3
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| Chemical Name |
methyl 2,6-dimethyl-5-nitro-4-[2-(trifluoromethyl)phenyl]-1,4-dihydropyridine-3-carboxylate
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| Synonyms |
(-)-BAY-K 8644; Bay-K 8644 (R)-(-)-; (R)-(-)-Bay-K-8644; Bay-K-8644 (S)-(-)-; (R)-(-)-Bay K-8644; (-)-BAY-R-5417; (-)-BAY-K-8644; (-)-BAY R-5417; BAYK 8644; BAYK8644; BAYK-8644.
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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 : ≥ 300 mg/mL (~841.99 mM)
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| Solubility (In Vivo) |
Solubility in Formulation 1: ≥ 2.5 mg/mL (7.02 mM) (saturation unknown) in 10% DMSO + 40% PEG300 + 5% Tween80 + 45% Saline (add these co-solvents sequentially from left to right, and one by one), clear solution.
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 (7.02 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 | 2.8066 mL | 14.0331 mL | 28.0662 mL | |
| 5 mM | 0.5613 mL | 2.8066 mL | 5.6132 mL | |
| 10 mM | 0.2807 mL | 1.4033 mL | 2.8066 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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