2. Cell Cycle/DNA Damage Cytoskeleton
  3. Kinesin Microtubule/Tubulin
  4. BRD9876

BRD9876 is the “rigor” inhibitor that locks kinesin-5 (Eg5) in a state with enhanced microtubules (MTs) binding, leading to bundling and stabilization of MTs. BRD9876 interacts with the tyrosine 104 residue that is part of the α4-α6 allosteric binding pocket. BRD9876 specifically targets microtubule-bound Eg5 and selectively inhibits myeloma over CD34 cells. BRD9876 has the potential for multiple myeloma (MM) research.

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

BRD9876 Chemical Structure

BRD9876 Chemical Structure

CAS No. : 32703-82-5

Size Price Stock Quantity
Solid + Solvent (Highly Recommended)
10 mM * 1 mL in DMSO
ready for reconstitution
 USD 88 In-stock
Solution
10 mM * 1 mL in DMSO USD 88 In-stock
Solid
50 mg USD 80 In-stock
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Based on 1 publication(s) in Google Scholar

BRD9876 Related Antibodies

Top Publications Citing Use of Products

1 Publications Citing Use of MCE BRD9876

View All Kinesin Isoform Specific Products:

View All Isoforms
Kinesin-5/Eg5/KSP Kinesin-6 Kinesin-7/CENP-E Kinesin-12 Kinesin-14

  • Biological Activity

  • Purity & Documentation

  • References

  • Customer Review

Description

BRD9876 is the “rigor” inhibitor that locks kinesin-5 (Eg5) in a state with enhanced microtubules (MTs) binding, leading to bundling and stabilization of MTs. BRD9876 interacts with the tyrosine 104 residue that is part of the α4-α6 allosteric binding pocket. BRD9876 specifically targets microtubule-bound Eg5 and selectively inhibits myeloma over CD34 cells. BRD9876 has the potential for multiple myeloma (MM) research[1][2][3][4].

In Vitro

BRD9876 (10 μM; 24 hours) reveales rapid arrest of cells at the G2/M phase starting as early as 2h of treatment in MM1S cells[1].
BRD9876 exhibits approximately 3-fold selectivity for MM1S myeloma cells (IC50=3.1 μM) over CD34+ derived hematopoietic cells (IC50=9.1 μM)[1].
BRD9876 (0.1, 1, 10, 100 uM) is able to overcome, in MM1S cells, stromal resistance of bone marrow stromal cells (BMSCs) from MM bone marrow aspirates but only minimal effects are observed with BRD9876 against primary MM cells[1].
BRD9876 is completely ineffective at inhibiting the basal ATPase activity of Eg5, in contrast to loop L5-binding monastrol or α4/α6-binding BI8 which shows greater activity against basal Eg5 ATPase activity[1].

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

BRD9876 Related Antibodies

Cell Cycle Analysis[1]

Cell Line: MM1S cells and CD34 hematopoietic cells
Concentration: 10 μM
Incubation Time: 24 hours
Result: Revealed rapid arrest of cells at the G2/M phase starting as early as 2h of treatment in MM1S cells.
Showed markedly less G2/M arrest in CD34 hematopoietic cells.
Molecular Weight

234.30

Formula

C16H14N2
CAS No.
Appearance

Solid

Color

White to yellow

SMILES

CC(C)(C1=CC2=CC(C#N)=C(C#N)C=C2C=C1)C
Shipping

Room temperature in continental US; may vary elsewhere.
Storage

4°C, sealed storage, away from moisture

*In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)

Solvent & Solubility
In Vitro: 

DMSO : 50 mg/mL (213.40 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 4.2680 mL 21.3402 mL 42.6803 mL
5 mM 0.8536 mL 4.2680 mL 8.5361 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 (sealed storage, away from moisture). 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
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Concentration
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Volume
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Molecular Weight *

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

This equation is commonly abbreviated as: C1V1 = C2V2

Concentration (start)

C1

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Volume (start)

V1

=
Concentration (final)

C2

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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    90% Corn Oil

    Solubility: ≥ 2.5 mg/mL (10.67 mM); Clear solution

    This protocol yields a clear solution of ≥ 2.5 mg/mL (saturation unknown). If the continuous dosing period exceeds half a month, please choose this protocol carefully.

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.0 mg/mL) to 900 μL Corn oil, and mix evenly.

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 (sealed storage, away from moisture)

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 (sealed storage, away from moisture). 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 4.2680 mL 21.3402 mL 42.6803 mL 106.7008 mL
5 mM 0.8536 mL 4.2680 mL 8.5361 mL 21.3402 mL
10 mM 0.4268 mL 2.1340 mL 4.2680 mL 10.6701 mL
15 mM 0.2845 mL 1.4227 mL 2.8454 mL 7.1134 mL
20 mM 0.2134 mL 1.0670 mL 2.1340 mL 5.3350 mL
25 mM 0.1707 mL 0.8536 mL 1.7072 mL 4.2680 mL
30 mM 0.1423 mL 0.7113 mL 1.4227 mL 3.5567 mL
40 mM 0.1067 mL 0.5335 mL 1.0670 mL 2.6675 mL
50 mM 0.0854 mL 0.4268 mL 0.8536 mL 2.1340 mL
60 mM 0.0711 mL 0.3557 mL 0.7113 mL 1.7783 mL
80 mM 0.0534 mL 0.2668 mL 0.5335 mL 1.3338 mL
100 mM 0.0427 mL 0.2134 mL 0.4268 mL 1.0670 mL
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BRD9876 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:

BRD987632703-82-5BRD 9876BRD-9876KinesinMicrotubule/TubulinATPmitotictyrosineα4-α6microtubulemyelomaCD34multipleG2/MMM1SBMSCInhibitorinhibitorinhibit

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