2. Natural Products
  3. Plants Flavonoids
  4. Compositae Flavonones
  5. Traversia baccharoides Hook.f.
  6. Sternbin

Sternbin  (Synonyms: Eriodictyol 7-methyl ether; 7-O-Methyleriodictyol)

Cat. No.: HY-N2754 Purity: 99.98%
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Molarity Calculator

Sternbin is the detoxified metabolites from the rice flavanone phytoalexin Sakuranetin by Pyricularia oryzae. Sakuranetin is a flavanone phytoalexin associated with disease resistance in rice plants.

For research use only. We do not sell to patients.

Sternbin Chemical Structure

Sternbin Chemical Structure

CAS No. : 51857-11-5

Size Price Stock Quantity
1 mg USD 70 In-stock
5 mg USD 170 In-stock
10 mg USD 280 In-stock
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This product is a controlled substance and not for sale in your territory.

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Based on 1 publication(s) in Google Scholar

Sternbin Related Antibodies

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  • Biological Activity

  • Purity & Documentation

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Description

Sternbin is the detoxified metabolites from the rice flavanone phytoalexin Sakuranetin by Pyricularia oryzae. Sakuranetin is a flavanone phytoalexin associated with disease resistance in rice plants[1].

Molecular Weight

302.28

Formula

C16H14O6
CAS No.
Appearance

Solid

Color

White to off-white

SMILES

O=C1C2=C(O)C=C(OC)C=C2O[C@H](C3=CC(O)=C(O)C=C3)C1
Structure Classification
Initial Source
Shipping

Room temperature in continental US; may vary elsewhere.
Storage

4°C, protect from light

*In solvent : -80°C, 6 months; -20°C, 1 month (protect from light)

Solvent & Solubility
In Vitro: 

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)

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 3.3082 mL 16.5410 mL 33.0819 mL
5 mM 0.6616 mL 3.3082 mL 6.6164 mL
View the 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.

  • Molarity Calculator

  • Dilution Calculator

Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

Mass
=
Concentration
×
Volume
×
Molecular Weight *

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

This equation is commonly abbreviated as: C1V1 = C2V2

Concentration (start)

C1

×
Volume (start)

V1

=
Concentration (final)

C2

×
Volume (final)

V2

In Vivo:

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.

  • Protocol 1

    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.
  • Protocol 2

    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.
In Vivo Dissolution Calculator
Please enter the basic information of animal experiments:

Dosage

mg/kg

Animal weight
(per animal)

g

Dosing volume
(per animal)

μL

Number of animals

Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.
Please enter your animal formula composition:
%
DMSO +
% 
+
%
Tween-80 +
%
Saline
Recommended: Keep the proportion of DMSO in working solution below 2% if your animal is weak.
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).
Calculation results:
Working solution concentration: 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)

The concentration of the stock solution you require exceeds the measured solubility. The following solution is for reference only. If necessary, please contact MedChemExpress (MCE).
Method for preparing in vivo working solution for animal experiments: Take μL DMSO stock solution, add μL . μL , mix evenly, next add μL Tween 80, mix evenly, then add μL Saline.
 If the continuous dosing period exceeds half a month, please choose this protocol carefully.
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
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 (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
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Sternbin Related Classifications

Help & FAQs
  • Do most proteins show cross-species activity?

    Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

Keywords:

Sternbin51857-11-5Eriodictyol 7-methyl ether 7-O-MethyleriodictyolOthersInhibitorinhibitorinhibit

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