Otophylloside B
Based on 1 Customer Validation
Otophylloside B, a C-21 steroidal glycoside isolated from Qingyangshen. Otophylloside B protects against Aβ toxicity, which decreases Aβ deposition by decreasing the expression of Aβ at the mRNA level. Otophylloside B has antiepileptic activity.
For research use only. We do not sell to patients.
- Purity: 99.51%
- CAS No.: 106758-54-7
- Formula: C49H78O16
- Molecular Weight:923.13
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Storage:
-20°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
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Cell Line
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Type | Value | Description | References |
|---|---|---|---|---|
| A549 | IC50 |
27.7 μM
Compound: 9
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Cytotoxicity against human A549 cells assessed as reduction in cell viability after 48 hrs by MTS assay
Cytotoxicity against human A549 cells assessed as reduction in cell viability after 48 hrs by MTS assay
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[PMID: 29625825] |
| HL-60 | IC50 |
11.4 μM
Compound: 9
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Cytotoxicity against human HL60 cells assessed as reduction in cell viability after 48 hrs by MTS assay
Cytotoxicity against human HL60 cells assessed as reduction in cell viability after 48 hrs by MTS assay
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[PMID: 29625825] |
| MCF7 | IC50 |
16.1 μM
Compound: 9
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Cytotoxicity against human MCF7 cells assessed as reduction in cell viability after 48 hrs by MTS assay
Cytotoxicity against human MCF7 cells assessed as reduction in cell viability after 48 hrs by MTS assay
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[PMID: 29625825] |
| SMMC-7721 | IC50 |
27.9 μM
Compound: 9
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Cytotoxicity against human SMMC7721 cells assessed as reduction in cell viability after 48 hrs by MTS assay
Cytotoxicity against human SMMC7721 cells assessed as reduction in cell viability after 48 hrs by MTS assay
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[PMID: 29625825] |
| SW480 | IC50 |
30.3 μM
Compound: 9
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Cytotoxicity against human SW480 cells assessed as reduction in cell viability after 48 hrs by MTS assay
Cytotoxicity against human SW480 cells assessed as reduction in cell viability after 48 hrs by MTS assay
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[PMID: 29625825] |
Chemical Information
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CAS No. 106758-54-7
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Appearance Solid
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Molecular Weight 923.13
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Formula C49H78O16
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Color White to off-white
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SMILES
O[C@]([C@@]([C@]1([H])C2)(CC=C3[C@@]1(CC[C@H](O[C@@](O[C@H](C)[C@H]4O[C@@](O[C@H](C)[C@H]5O[C@@](O[C@H](C)[C@H]6O)([H])C[C@H]6OC)([H])C[C@@H]5OC)([H])C[C@@H]4OC)C3)C)O)(CC[C@@]7(O)C(C)=O)[C@@]7([C@@H]2OC(/C=C(C)/C(C)C)=O)C
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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
-20°C, protect from light
* In solvent : -80°C, 6 months; -20°C, 1 month (protect from light)
Solvent & Solubility
DMSO : 50 mg/mL (54.16 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 (1.35 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 (1.35 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 (252 KB)
- English - EN (252 KB)
- Français - FR (252 KB)
- Deutsch - DE (252 KB)
- Norwegian - NO (252 KB)
- Español - ES (252 KB)
- Swedish - SV (252 KB)
- Italian - IT (252 KB)
- Korean - KR (252 KB)
- Portuguese - PT (252 KB)
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Handling Instructions (2659 KB)
References
[1]. Li JL, et al. Bioactive C21 Steroidal Glycosides from the Roots of Cynanchum otophyllum That Suppress the Seizure-like Locomotor Activity of Zebrafish Caused by Pentylenetetrazole. J Nat Prod. 2015 Jul 24;78(7):1548-55. [Content Brief]
[2]. Yang J, et al. Otophylloside B Protects Against Aβ Toxicity in Caenorhabditis elegans Models of Alzheimer's Disease. Nat Prod Bioprospect. 2017 Apr;7(2):207-214. [Content Brief]
[3]. Li X, et al. Antiepileptic C21 steroids from the roots of Cynanchum otophyllum. J Asian Nat Prod Res. 2015;17(7):724-32. [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 | 1.0833 mL | 5.4164 mL | 10.8327 mL | 27.0818 mL |
| 5 mM | 0.2167 mL | 1.0833 mL | 2.1665 mL | 5.4164 mL | |
| 10 mM | 0.1083 mL | 0.5416 mL | 1.0833 mL | 2.7082 mL | |
| 15 mM | 0.0722 mL | 0.3611 mL | 0.7222 mL | 1.8055 mL | |
| 20 mM | 0.0542 mL | 0.2708 mL | 0.5416 mL | 1.3541 mL | |
| 25 mM | 0.0433 mL | 0.2167 mL | 0.4333 mL | 1.0833 mL | |
| 30 mM | 0.0361 mL | 0.1805 mL | 0.3611 mL | 0.9027 mL | |
| 40 mM | 0.0271 mL | 0.1354 mL | 0.2708 mL | 0.6770 mL | |
| 50 mM | 0.0217 mL | 0.1083 mL | 0.2167 mL | 0.5416 mL |
Otophylloside B Related Classifications
HY-N0582 Related Classifications
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