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Radezolid

Alias: RX-1741 RX1741 RX 1741 Radezolid
Cat No.:V5735 Purity: ≥98%
Radezolid (RX-1741) is an oxazolidinone antibiotic.
Radezolid
Radezolid Chemical Structure CAS No.: 869884-78-6
Product category: New1
This product is for research use only, not for human use. We do not sell to patients.
Size Price Stock Qty
1mg
5mg
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Product Description
Radezolid (RX-1741) is an oxazolidinone antibiotic. Radezolid has activivty against Staphylococcus aureus, Chlamydia and Legionella and is also active against Linezolid-resistant strains.
Biological Activity I Assay Protocols (From Reference)
ln Vitro
All bacteria that were susceptible to linezolid had radarzolid MICs that were either the same or lower than those of linezolid (up to 3 log2 dilutions); strains that were resistant to linezolid had an 8-fold difference in MICs. Regardless of the bacteria examined, Radezolid shown greater potency than Nezolid when concentrations were expressed on a weight basis (mg/L). In comparison to linezolid, radezolid is more potent when concentrations are expressed on a weight basis (mg/L) [1]. When it comes to 3-copy G2447T, G2576T, and G2576T/T2571C mutants, radezolid and TR-700 work effectively [2].
References
[1]. Lemaire S, et al. Cellular pharmacodynamics of the novel biaryloxazolidinone radezolid: studies with infected phagocytic and nonphagocytic cells, using Staphylococcus aureus, Staphylococcus epidermidis, Listeria monocytogenes, and Legionella pneumophila.
[2]. Locke JB, et al. Structure-activity relationships of diverse oxazolidinones for linezolid-resistant Staphylococcus aureus strains possessing the cfr methyltransferase gene or ribosomal mutations. Antimicrob Agents Chemother. 2010 Dec;54(12):5337-43
Additional Infomation
Radezolid has been used in trials studying the treatment of Abscess, Bacterial Skin Diseases, Streptococcal Infections, Infectious Skin Diseases, and Staphylococcal Skin Infections, among others.
These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C22H23FN6O3
Molecular Weight
438.4634
Exact Mass
438.181
CAS #
869884-78-6
Related CAS #
869884-78-6;869884-77-5 (HCl);
PubChem CID
11224409
Appearance
White to off-white solid powder
Density
1.3±0.1 g/cm3
Boiling Point
712.5±60.0 °C at 760 mmHg
Flash Point
384.7±32.9 °C
Vapour Pressure
0.0±2.3 mmHg at 25°C
Index of Refraction
1.612
LogP
2.28
Hydrogen Bond Donor Count
3
Hydrogen Bond Acceptor Count
7
Rotatable Bond Count
8
Heavy Atom Count
32
Complexity
647
Defined Atom Stereocenter Count
1
SMILES
O=C1O[C@@H](CNC(=O)C)CN1C1C=CC(C2C=CC(CNCC3NN=NC=3)=CC=2)=C(F)C=1
InChi Key
BTTNOGHPGJANSW-IBGZPJMESA-N
InChi Code
InChI=1S/C22H23FN6O3/c1-14(30)25-12-19-13-29(22(31)32-19)18-6-7-20(21(23)8-18)16-4-2-15(3-5-16)9-24-10-17-11-26-28-27-17/h2-8,11,19,24H,9-10,12-13H2,1H3,(H,25,30)(H,26,27,28)/t19-/m0/s1
Chemical Name
N-[[(5S)-3-[3-fluoro-4-[4-[(2H-triazol-4-ylmethylamino)methyl]phenyl]phenyl]-2-oxo-1,3-oxazolidin-5-yl]methyl]acetamide
Synonyms
RX-1741 RX1741 RX 1741 Radezolid
HS Tariff Code
2934.99.9001
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)
Solubility Data
Solubility (In Vitro)
DMSO : ≥ 25 mg/mL (~57.02 mM)
Solubility (In Vivo)
Solubility in Formulation 1: ≥ 2.5 mg/mL (5.70 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 (5.70 mM) (saturation unknown) in 10% DMSO + 90% (20% SBE-β-CD in 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 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.

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Solubility in Formulation 3: ≥ 2.5 mg/mL (5.70 mM) (saturation unknown) in 10% DMSO + 90% Corn Oil (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 900 μL of corn oil and mix evenly.


 (Please use freshly prepared in vivo formulations for optimal results.)
Preparing Stock Solutions 1 mg 5 mg 10 mg
1 mM 2.2807 mL 11.4035 mL 22.8071 mL
5 mM 0.4561 mL 2.2807 mL 4.5614 mL
10 mM 0.2281 mL 1.1404 mL 2.2807 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.

Calculator

Molarity Calculator allows you to calculate the mass, volume, and/or concentration required for a solution, as detailed below:

  • Calculate the Mass of a compound required to prepare a solution of known volume and concentration
  • Calculate the Volume of solution required to dissolve a compound of known mass to a desired concentration
  • Calculate the Concentration of a solution resulting from a known mass of compound in a specific volume
An example of molarity calculation using the molarity calculator is shown below:
What is the mass of compound required to make a 10 mM stock solution in 5 ml of DMSO given that the molecular weight of the compound is 350.26 g/mol?
  • Enter 350.26 in the Molecular Weight (MW) box
  • Enter 10 in the Concentration box and choose the correct unit (mM)
  • Enter 5 in the Volume box and choose the correct unit (mL)
  • Click the “Calculate” button
  • The answer of 17.513 mg appears in the Mass box. In a similar way, you may calculate the volume and concentration.

Dilution Calculator allows you to calculate how to dilute a stock solution of known concentrations. For example, you may Enter C1, C2 & V2 to calculate V1, as detailed below:

What volume of a given 10 mM stock solution is required to make 25 ml of a 25 μM solution?
Using the equation C1V1 = C2V2, where C1=10 mM, C2=25 μM, V2=25 ml and V1 is the unknown:
  • Enter 10 into the Concentration (Start) box and choose the correct unit (mM)
  • Enter 25 into the Concentration (End) box and select the correct unit (mM)
  • Enter 25 into the Volume (End) box and choose the correct unit (mL)
  • Click the “Calculate” button
  • The answer of 62.5 μL (0.1 ml) appears in the Volume (Start) box
g/mol

Molecular Weight Calculator allows you to calculate the molar mass and elemental composition of a compound, as detailed below:

Note: Chemical formula is case sensitive: C12H18N3O4  c12h18n3o4
Instructions to calculate molar mass (molecular weight) of a chemical compound:
  • To calculate molar mass of a chemical compound, please enter the chemical/molecular formula and click the “Calculate’ button.
Definitions of molecular mass, molecular weight, molar mass and molar weight:
  • Molecular mass (or molecular weight) is the mass of one molecule of a substance and is expressed in the unified atomic mass units (u). (1 u is equal to 1/12 the mass of one atom of carbon-12)
  • Molar mass (molar weight) is the mass of one mole of a substance and is expressed in g/mol.
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Reconstitution Calculator allows you to calculate the volume of solvent required to reconstitute your vial.

  • Enter the mass of the reagent and the desired reconstitution concentration as well as the correct units
  • Click the “Calculate” button
  • The answer appears in the Volume (to add to vial) box
In vivo Formulation Calculator (Clear solution)
Step 1: Enter information below (Recommended: An additional animal to make allowance for loss during the experiment)
Step 2: Enter in vivo formulation (This is only a calculator, not the exact formulation for a specific product. Please contact us first if there is no in vivo formulation in the solubility section.)
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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.

Clinical Trial Information
NCT Number Recruitment interventions Conditions Sponsor/Collaborators Start Date Phases
NCT00640926 COMPLETEDWITH RESULTS Drug: Radezolid
Drug: Radezolid
Drug: Radezolid
Community-Acquired Pneumonia (CAP) Melinta Therapeutics, Inc. 2007-10 Phase 2
NCT00646958 COMPLETEDWITH RESULTS Drug: Radezolid
Drug: Radezolid
Drug: Linezolid
Abscess
Bacterial Skin Diseases
Infectious Skin Diseases
Staphylococcal Skin Infections
Streptococcal Infections
Melinta Therapeutics, Inc. 2007-12 Phase 2
Biological Data
  • Dose response curves of linezolid and radezolid toward the intracellular forms of L. monocytogenes (strain EGD), S. aureus (strain ATCC 25923), L. pneumophila (strain ATCC 33153), or S. epidermidis (strain CN362) after phagocytosis by human THP-1 cells. Cells were incubated with the antibiotic for 24 h (for S. aureus, S. epidermidis or L. monocytogenes) or 48 h (for L. pneumophila) at the concentrations (total drug) indicated on the abscissa, with values expressed in mg/liter or in multiples (X) of the MIC. The ordinate shows the change in the number of CFU per mg of cell protein compared to the postphagocytosis inoculum. All values are means ± standard deviations (n = 3; when not visible, the standard deviation bars are smaller than the size of the symbols). The horizontal line corresponds to an apparent static effect. L, liter.[1]. Lemaire S, et al. Cellular pharmacodynamics of the novel biaryloxazolidinone radezolid: studies with infected phagocytic and nonphagocytic cells, using Staphylococcus aureus, Staphylococcus epidermidis, Listeria monocytogenes, and Legionella pneumophila.
  • Dose response curves of linezolid and radezolid toward different strains of S. aureus phagocytosed by THP-1 cells (upper panel, linezolid-susceptible strains; lower panel, linezolid-resistant strains). Cells were incubated with the antibiotic for 24 h at the concentrations (total drug) indicated on the abscissa and expressed in multiples (X) of the MIC. The ordinate shows the change in the number of CFU per mg of cell protein compared to the postphagocytosis inoculum. All values are means ± standard deviations (n = 3; when not visible, the standard deviation bars are smaller than the size of the symbols). The horizontal line corresponds to an apparent static effect. The vertical dotted line corresponds to the MIC, the value (or range of values) of which is indicated below each panel. L, liter.TABLE 3.[1]. Lemaire S, et al. Cellular pharmacodynamics of the novel biaryloxazolidinone radezolid: studies with infected phagocytic and nonphagocytic cells, using Staphylococcus aureus, Staphylococcus epidermidis, Listeria monocytogenes, and Legionella pneumophila.
  • Dose response curves of linezolid (LZD) and radezolid (RZD) toward two isogenic strains of S. aureus that are linezolid susceptible (SA238) or linezolid resistant (SA238L), phagocytosed by different cell types. Cells were incubated with the antibiotic for 24 h at the concentrations (total drug) indicated on the abscissa and expressed in mg/liter. The ordinate shows the change in the number of CFU per mg of cell protein compared to the postphagocytosis inoculum. All values are means ± standard deviations (n = 3; when not visible, the standard deviation bars are smaller than the size of the symbols). The horizontal line corresponds to an apparent static effect. L, liter.[1]. Lemaire S, et al. Cellular pharmacodynamics of the novel biaryloxazolidinone radezolid: studies with infected phagocytic and nonphagocytic cells, using Staphylococcus aureus, Staphylococcus epidermidis, Listeria monocytogenes, and Legionella pneumophila.
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