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Solithromycin

Alias: CEM 101; OP1068; OP1068; OP 1068; Solithromycin;CEM101; CEM101
Cat No.:V8042 Purity: ≥98%
Solithromycin (CEM-101; OP1068;CEM101; OP-1068) is a novel and potent ketolide antibioticwith improved antimicrobial effectiveness.
Solithromycin
Solithromycin Chemical Structure CAS No.: 760981-83-7
Product category: Bacterial
This product is for research use only, not for human use. We do not sell to patients.
Size Price Stock Qty
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Product Description

Solithromycin (CEM-101; OP1068; CEM101; OP-1068) is a novel and potent ketolide antibiotic with improved antimicrobial effectiveness. It has a broad spectrum of activity against Gram-positive respiratory tract pathogens, including macrolide-resistant strains. Solithromycin is being studied in clinical trials for the treatment of community-acquired pneumonia (CAP) and other infections.

Biological Activity I Assay Protocols (From Reference)
Targets
Macrolide
ln Vitro
The half-life of solithromycin on the release of TNFα and CXCL8 is 41.6 μM and 78.2 μM, respectively. MMP9 activity is significantly reduced by solithromycin, with an IC50 of 14.9 μM[2]. In monocytic U937 and PBMC cells, levofloxacin (0-333 μM; 72 hours) inhibits the release of TNFα induced by lipopolysaccharide and the activity of matrix metalloproteinase 9 (MMP9) induced by phorbol 12-myristate 13-acetate (PMA). It has no effect on cell viability[2].
ln Vivo
After exposing C57BL/6J mice to cigarette smoke for eight days, oral administration of levofloxacin (100 mg/kg) inhibits the accumulation of inflammatory cells and the production of pro-MMP9[2].
Animal Protocol
Animal Model: C57BL/6J mice (male, 4 weeks)[2]
Dosage: 100 mg/kg
Administration: Oral administration; every day; for 8 days
Result: prevented the production of pro-MMP9 and neutrophilia brought on by cigarette smoke.
References

[1]. Solithromycin inhibition of protein synthesis and ribosome biogenesis in Staphylococcus aureus,Streptococcus pneumoniae, and Haemophilus influenzae. Antimicrob Agents Chemother. 2013 Apr;57(4):1632-1637.

[2]. A novel macrolide solithromycin exerts superior anti-inflammatory effect via NF-κB inhibition. J Pharmacol Exp Ther. 2013 Apr;345(1):76-84.

These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C43H65FN6O10
Molecular Weight
845.01
Exact Mass
844.47462
Elemental Analysis
C, 61.12; H, 7.75; F, 2.25; N, 9.95; O, 18.93
CAS #
760981-83-7
Appearance
Solid powder
SMILES
C[C@]([C@H](OC([C@@](F)(C([C@H](C)[C@H]1O[C@@](O[C@H](C)C[C@@H]2N(C)C)([H])[C@@H]2O)=O)C)=O)CC)(O3)[C@]([C@H](C([C@@H](C[C@@]1(C)OC)C)=O)C)([H])N(CCCCN4C=C(C5=CC(N)=CC=C5)N=N4)C3=O
InChi Key
IXXFZUPTQVDPPK-QIFQIIIXSA-N
InChi Code
InChI=1S/C43H65FN6O10/c1-12-32-43(8)35(50(40(55)60-43)19-14-13-18-49-23-30(46-47-49)28-16-15-17-29(45)21-28)26(4)33(51)24(2)22-41(6,56-11)37(27(5)36(53)42(7,44)39(54)58-32)59-38-34(52)31(48(9)10)20-25(3)57-38/h15-17,21,23-27,31-32,34-35,37-38,52H,12-14,18-20,22,45H2,1-11H3/t24-,25-,26-,27+,31+,32-,34-,35-,37-,38+,41-,42-,43-/m1/s1
Chemical Name
3aS,4R,7R,9R,10R,11R,13R,15S,15aR)-1-(4-(4-(3-aminophenyl)-1H-1,2,3-triazol-1-yl)butyl)-10-(((2S,3R,4S,6R)-4-(dimethylamino)-3-hydroxy-6-methyltetrahydro-2H-pyran-2-yl)oxy)-4-ethyl-7-fluoro-11-methoxy-3a,7,9,11,13,15-hexamethyloctahydro-1H-[1]oxacyclotetradecino[4,3-d]oxazole-2,6,8,14(7H,9H)-tetraone
Synonyms
CEM 101; OP1068; OP1068; OP 1068; Solithromycin;CEM101; CEM101
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 : 32~100 mg/mL ( 37.87~118.34 mM ) Ethanol : ~25 mg/mL
H2O : ~1 mg/mL (~1.18 mM)
Solubility (In Vivo)
Solubility in Formulation 1: ≥ 2.5 mg/mL (2.96 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 (2.96 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.

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Solubility in Formulation 3: 10% DMSO+40% PEG300+5% Tween-80+45% Saline: ≥ 2.5 mg/mL (2.96 mM)


 (Please use freshly prepared in vivo formulations for optimal results.)
Preparing Stock Solutions 1 mg 5 mg 10 mg
1 mM 1.1834 mL 5.9171 mL 11.8342 mL
5 mM 0.2367 mL 1.1834 mL 2.3668 mL
10 mM 0.1183 mL 0.5917 mL 1.1834 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:

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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:
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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
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  • 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.

Biological Data
  • Inhibition of protein synthesis rate, growth rate, and CFU by solithromycin for S. pneumoniae (a), methicillin-susceptible S. aureus (MSSA) (b), methicillin-resistant S. aureus (MRSA) (c), and H. influenzae (d). Percentages of the control growth rate, cell number, and protein synthesis rate are shown.[1].Antimicrob Agents Chemother. 2013 Apr;57(4):1632-1637.
  • Solithromycin inhibition of ribosomal subunit formation in S. pneumoniae (a), MSSA (b), MRSA (c), and H. influenzae (d). [1].Antimicrob Agents Chemother. 2013 Apr;57(4):1632-1637.
  • Ribosomal subunit synthesis rates for S. pneumoniae (a), MSSA (b), MRSA (c), and H. influenzae (d).[1].Antimicrob Agents Chemother. 2013 Apr;57(4):1632-1637.
  • Agilent gel electropherogram of total RNA samples from control and solithromycin-treated cells.[1].Antimicrob Agents Chemother. 2013 Apr;57(4):1632-1637.
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