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  4. Gossypol

Gossypol binds to Bcl-xL protein and Bcl-2 protein with Kis of 0.5-0.6 μM and 0.2-0.3 mM, respectively.

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

Gossypol Chemical Structure

Gossypol Chemical Structure

CAS No. : 303-45-7

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Customer Review

Based on 6 publication(s) in Google Scholar

Other Forms of Gossypol:

Gossypol Related Antibodies

Top Publications Citing Use of Products

View All Bcl-2 Family Isoform Specific Products:

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Bcl-2 Bcl-xL Bcl-W Mcl-1 Bfl-1 Bcl-B Bax Bak Bim

  • Biological Activity

  • Protocol

  • Purity & Documentation

  • References

  • Customer Review

Description

Gossypol binds to Bcl-xL protein and Bcl-2 protein with Kis of 0.5-0.6 μM and 0.2-0.3 mM, respectively.

IC50 & Target[1]

Bcl-xL

0.5-0.6 μM (Ki)

Bcl-2

0.2-0.3 mM (Ki)

In Vitro

Gossypol, a natural product isolated from cottonseeds and roots that has been studied as an anticancer agent. The racemic form of Gossypol [(±)-Gossypol] is tested in several clinical trials and is well tolerated. The racemic form Gossypol ((±)-Gossypol) binds to Bcl-xL protein with a Ki of 0.5 to 0.6 μM. (±)-Gossypol also potently binds to Bcl-2 protein with a Ki value of 0.2-0.3 mM. The natural racemic Gossypol has two enantiomers, namely the (-)-Gossypol and (+)-Gossypol enantiomers. The racemic form and each of the enantiomers of Gossypol are tested against UM-SCC-6 and UM-SCC-14A in 6-day MTT assays. (-)-Gossypol exhibits greater growth inhibition relative to (±)-Gossypol than (+)-Gossypol in both cell lines tested (P<0.001). An intermediate growth inhibitory effect is observed with (±)-Gossypol but this effect is only observed at the higher dose of Gossypol (10 μM, P<0.0001)[1].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

Gossypol Related Antibodies
Clinical Trial
Molecular Weight

518.55

Formula

C30H30O8
CAS No.
Appearance

Solid

Color

Light yellow to yellow

SMILES

O=CC1=C(O)C(O)=C(C(C)C)C2=CC(C)=C(C3=C(C)C=C4C(C(C)C)=C(O)C(O)=C(C=O)C4=C3O)C(O)=C12
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 : 33.33 mg/mL (64.28 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 1.9285 mL 9.6423 mL 19.2845 mL
5 mM 0.3857 mL 1.9285 mL 3.8569 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: ≥ 2.08 mg/mL (4.01 mM); Clear solution

    This protocol yields a clear solution of ≥ 2.08 mg/mL (saturation unknown).

    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.
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

Purity: 99.67%

SDS (418 KB)

COA (253 KB) HNMR (266 KB) LCMS (95 KB)

Handling Instructions (2659 KB)
References
Cell Assay
[1]

Two representative UM-SCC cell lines, UM-SCC-6 and UM-SCC-14A, are continuously exposed to 0 (vehicle control), 5 or 10 μM (±)-Gossypol, (-)-Gossypol or (+)-Gossypol in a 6-day MTT cell survival assay[1].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.
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 1.9285 mL 9.6423 mL 19.2845 mL 48.2114 mL
5 mM 0.3857 mL 1.9285 mL 3.8569 mL 9.6423 mL
10 mM 0.1928 mL 0.9642 mL 1.9285 mL 4.8211 mL
15 mM 0.1286 mL 0.6428 mL 1.2856 mL 3.2141 mL
20 mM 0.0964 mL 0.4821 mL 0.9642 mL 2.4106 mL
25 mM 0.0771 mL 0.3857 mL 0.7714 mL 1.9285 mL
30 mM 0.0643 mL 0.3214 mL 0.6428 mL 1.6070 mL
40 mM 0.0482 mL 0.2411 mL 0.4821 mL 1.2053 mL
50 mM 0.0386 mL 0.1928 mL 0.3857 mL 0.9642 mL
60 mM 0.0321 mL 0.1607 mL 0.3214 mL 0.8035 mL
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Gossypol 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:

Gossypol303-45-7BL 193BL193BL-193Bcl-2 FamilyInhibitorinhibitorinhibit

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