Sternbin
Based on 1 Customer Validation
Sternbin (Eriodictyol 7-methyl ether) is a flavanone and antibacterial agent. Sternbin can be isolated from Heliotropium sinuatum. Sternbin has antibacterial activity against a wide range of bacteria. Sternbin has antiviral activity against infectious salmon anemia virus (ISAV). Sternbin inhibits the contraction of isolated rat smooth muscle.
For research use only. We do not sell to patients.
- Purity: 99.98%
- CAS No.: 51857-11-5
- Formula: C16H14O6
- Molecular Weight:302.28
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Storage:
4°C, protect from light
* In solvent : -80°C, 6 months; -20°C, 1 month (protect from light)
To place orders, for customer services and technical support, please contact: MedChemExpress USA
Tel: 609-228-6898 E-mail: [email protected] [email protected]
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Biological Activity
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Chemical Information
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Solvent & Solubility
- Purity & Documentation
- References
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Help & FAQs
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Biological Activity
Sternbin shows a MIC of 0.5 μg/μL against Proteus mirabilis, 1.0 μg/μL against Bacillus coagulans, and 2.0 μg/μL against Bacillus subtilis[2].
Sternbin (0.1-100 μg/mL; 7 days) inhibits ISAV replication in SHK-1 cells with an EC50 of 0.20 μg/mL[3].
Sternbin (0.1 μM to 0.3 mM) exhibits relaxant effects on rat isolated ileum, pulmonary artery and trachea[4].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
Chemical Information
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CAS No. 51857-11-5
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Appearance Solid
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Molecular Weight 302.28
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Formula C16H14O6
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Color White to off-white
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SMILES
O=C1C2=C(O)C=C(OC)C=C2O[C@H](C3=CC(O)=C(O)C=C3)C1
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Synonyms
Eriodictyol 7-methyl ether; 7-O-Methyleriodictyol
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Structure Classification
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Initial Source
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Shipping
Room temperature in continental US; may vary elsewhere.
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Storage
4°C, protect from light
* In solvent : -80°C, 6 months; -20°C, 1 month (protect from light)
Solvent & Solubility
DMSO : 50 mg/mL (165.41 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 (protect from light). 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 (protect from light). 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: ≥ 1.25 mg/mL (4.14 mM); Clear solution
This protocol yields a clear solution of ≥ 1.25 mg/mL (saturation unknown).
Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (12.5 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: ≥ 1.25 mg/mL (4.14 mM); Clear solution
This protocol yields a clear solution of ≥ 1.25 mg/mL (saturation unknown).
Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (12.5 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. * In solvent : -80°C, 6 months; -20°C, 1 month (protect from light)
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 (274 KB)
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SDS (393 KB)
- English - EN (393 KB)
- Français - FR (393 KB)
- Deutsch - DE (393 KB)
- Norwegian - NO (393 KB)
- Español - ES (393 KB)
- Swedish - SV (393 KB)
- Italian - IT (393 KB)
- Korean - KR (393 KB)
- Portuguese - PT (393 KB)
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Handling Instructions (2659 KB)
References
[1]. Wang J, et al. ntegration of Transcriptomics and Metabolomics for Pepper (Capsicum annuum L.) in Response to Heat Stress. Int J Mol Sci. 2019 Oct 11;20(20):5042. [Content Brief]
[2]. Echeverría J, et al. Structure-Activity and Lipophilicity Relationships of Selected Antibacterial Natural Flavones and Flavanones of Chilean Flora. Molecules. 2017 Apr 10;22(4):608. [Content Brief]
[4]. Abu-Niaaj L, et al. Isolation and biological effects of 7-O-methyleriodictyol, a flavanone isolated from Artemisia monosperma, on rat isolated smooth muscles. Planta Med. 1993 Feb;59(1):42-5. [Content Brief]
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 (protect from light). 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 | 3.3082 mL | 16.5410 mL | 33.0819 mL | 82.7048 mL |
| 5 mM | 0.6616 mL | 3.3082 mL | 6.6164 mL | 16.5410 mL | |
| 10 mM | 0.3308 mL | 1.6541 mL | 3.3082 mL | 8.2705 mL | |
| 15 mM | 0.2205 mL | 1.1027 mL | 2.2055 mL | 5.5137 mL | |
| 20 mM | 0.1654 mL | 0.8270 mL | 1.6541 mL | 4.1352 mL | |
| 25 mM | 0.1323 mL | 0.6616 mL | 1.3233 mL | 3.3082 mL | |
| 30 mM | 0.1103 mL | 0.5514 mL | 1.1027 mL | 2.7568 mL | |
| 40 mM | 0.0827 mL | 0.4135 mL | 0.8270 mL | 2.0676 mL | |
| 50 mM | 0.0662 mL | 0.3308 mL | 0.6616 mL | 1.6541 mL | |
| 60 mM | 0.0551 mL | 0.2757 mL | 0.5514 mL | 1.3784 mL | |
| 80 mM | 0.0414 mL | 0.2068 mL | 0.4135 mL | 1.0338 mL | |
| 100 mM | 0.0331 mL | 0.1654 mL | 0.3308 mL | 0.8270 mL |
Sternbin Related Classifications
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