LtaS-IN-1
Based on 1 publication(s) in Google Scholar
LtaS-IN-1 (compound 1771) is a potent small-molecule inhibitor of Lipoteichoic acid (LTA) synthesis in multidrug-resistant (MDR) E. faecium and by altering the cell wall morphology. LtaS-IN-1 alone inhibits Enterococcus.spp 28 strains with varying MIC values ranging from 0.5 μg/mL to 64 μg/mL. LtaS-IN-1 combination with antibiotics abolishs multidrug-resistant E. faecium growth almost completely.
For research use only. We do not sell to patients.
- Purity: 99.58%
- CAS No.: 877950-01-1
- Formula: C24H17N3O5
- Molecular Weight:427.41
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Storage:Powder -20°C, 3 years , 4°C, 2 years ; In solvent -80°C, 6 months , -20°C, 1 month
Publications Citing Use of MedChemExpress (MCE) LtaS-IN-1
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Biological Activity
MIC: 0.5 μg/mL (strain E1630); 0.5 μg/mL (strain E1590)[1]
LtaS-IN-1 (0-100 μM) inhibits strain E745 growth as a concentration-dependent manner. At the concentration 10 μM leads to an 60% reduction in the final OD600 for this strain. Meanwhile, LtaS-IN-1 does not affect E. faecium growth in control group[1]. LtaS-IN-1 is against Enterococcus spp 28 strains with varying MIC values ranging from 0.5 μg/mL to 64 μg/mL. LtaS-IN-1 inhibits strain E1630 and E1590 with the MIC values of 0.5μg/mL[1]. LtaS-IN-1 (20 μM) combines with either ampicillin (20 μg/mL), gentamicin (10 μg/mL), linezolid (5 μg/mL), daptomycin (10 μg/mL+50 μg/mL calcium chloride) or vancomycin (20 μg/mL) can inhibit strains E7128 and E7130 growth by 97-100%, while LtaS-IN-1 alone only gives 73% (strain E7128) and 8% (strain E7130) of growth inhibition, respectively[1].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
Chemical Information
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CAS No. 877950-01-1
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Appearance Solid
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Molecular Weight 427.41
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Formula C24H17N3O5
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Color Light yellow to yellow
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SMILES
O=C(OCC(NC1=NN=C(C2=CC=CC=C2)O1)=O)CC3=COC4=CC=C5C=CC=CC5=C43
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Shipping
Room temperature in continental US; may vary elsewhere.
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Storage
Powder -20°C 3 years 4°C 2 years In solvent -80°C 6 months -20°C 1 month
Publications (1)
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Journal Impact Factor
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Most Recent
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bioRxiv
2023 Apr 10:2023.04.10.536223. PMID: 37090602
Solvent & Solubility
DMSO : 125 mg/mL (292.46 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)
Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.
Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
Select the appropriate dissolution method based on your experimental animal and administration route.
- For the following dissolution methods, please ensure to first prepare a clear stock solution using an In Vitro approach and then sequentially add co-solvents:
- To ensure reliable experimental results, the clarified stock solution can be appropriately stored based on storage conditions. As for the working solution for In Vivo experiments, it is recommended to prepare freshly and use it on the same day.
- The percentages shown for the solvents indicate their volumetric ratio in the final prepared solution. If precipitation or phase separation occurs during preparation, heat and/or sonication can be used to aid dissolution.
Add each solvent one by one: 10% DMSO 40% PEG300 5% Tween-80 45% Saline
Solubility: 2.08 mg/mL (4.87 mM); Suspended solution; Need ultrasonic
This protocol yields a suspended solution of 2.08 mg/mL. Suspended solution can be used for oral and intraperitoneal injection.
Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (20.8 mg/mL) to 400 μL PEG300, and mix evenly; then add 50 μL Tween-80 and mix evenly; then add 450 μL Saline to adjust the volume to 1 mL.
Preparation of Saline: Dissolve 0.9 g sodium chloride in ddH₂O and dilute to 100 mL to obtain a clear Saline solution.
Add each solvent one by one: 10% DMSO 90% (20% SBE-β-CD in Saline)
Solubility: 2.08 mg/mL (4.87 mM); Suspended solution; Need ultrasonic
This protocol yields a suspended solution of 2.08 mg/mL. Suspended solution can be used for oral and intraperitoneal injection.
Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (20.8 mg/mL) to 900 μL 20% SBE-β-CD in Saline, and mix evenly.
Preparation of 20% SBE-β-CD in Saline (4°C, storage for one week): 2 g SBE-β-CD powder is dissolved in 10 mL Saline, completely dissolve until clear.
Please enter the basic information of animal experiments:
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Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.
Please enter your animal formula composition:
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%DMSO +
Recommended: Keep the proportion of DMSO in working solution below 2% if your animal is weak.
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%+
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+%Tween-80 + +
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%Saline +
The co-solvents required include: DMSO, . All of co-solvents are available by MedChemExpress (MCE). , Tween 80. All of co-solvents are available by MedChemExpress (MCE).
Working solution concentration: 0.22 mg/mL
Method for preparing stock solution: mg drug dissolved in μL DMSO. Stock solution concentration: mg/mL.
1. Take μL DMSO stock solution;
2. Add μL .
μL , mix evenly;
3. Then add μL Tween 80, mix evenly;
4. Then add μL
Please ensure that the stock solution in the first step is dissolved to a clear state, and add co-solvents in sequence. You can use ultrasonic heating (ultrasonic cleaner, recommended frequency 20-40 kHz), vortexing, etc. to assist dissolution.
Purity & Documentation
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Data Sheet (275 KB)
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SDS (394 KB)
- English - EN (394 KB)
- Français - FR (394 KB)
- Deutsch - DE (394 KB)
- Norwegian - NO (394 KB)
- Español - ES (394 KB)
- Swedish - SV (394 KB)
- Italian - IT (394 KB)
- Korean - KR (394 KB)
- Portuguese - PT (394 KB)
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Handling Instructions (2659 KB)
References
Complete Stock Solution Preparation Table
Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.
| Optional Solvent | Concentration Solvent Mass | 1 mg | 5 mg | 10 mg | 25 mg |
|---|---|---|---|---|---|
| DMSO | 1 mM | 2.3397 mL | 11.6984 mL | 23.3967 mL | 58.4918 mL |
| 5 mM | 0.4679 mL | 2.3397 mL | 4.6793 mL | 11.6984 mL | |
| 10 mM | 0.2340 mL | 1.1698 mL | 2.3397 mL | 5.8492 mL | |
| 15 mM | 0.1560 mL | 0.7799 mL | 1.5598 mL | 3.8995 mL | |
| 20 mM | 0.1170 mL | 0.5849 mL | 1.1698 mL | 2.9246 mL | |
| 25 mM | 0.0936 mL | 0.4679 mL | 0.9359 mL | 2.3397 mL | |
| 30 mM | 0.0780 mL | 0.3899 mL | 0.7799 mL | 1.9497 mL | |
| 40 mM | 0.0585 mL | 0.2925 mL | 0.5849 mL | 1.4623 mL | |
| 50 mM | 0.0468 mL | 0.2340 mL | 0.4679 mL | 1.1698 mL | |
| 60 mM | 0.0390 mL | 0.1950 mL | 0.3899 mL | 0.9749 mL | |
| 80 mM | 0.0292 mL | 0.1462 mL | 0.2925 mL | 0.7311 mL | |
| 100 mM | 0.0234 mL | 0.1170 mL | 0.2340 mL | 0.5849 mL |