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BRD9876

Alias: BRD 9876; BRD-9876; BRD9876
Cat No.:V17011 Purity: ≥98%
BRD9876 is a “rigor” inhibitor that locks kinesin 5 (Eg5) in a state that enhances microtubule (MTs) binding, leading to MT bundling and stabilization.
BRD9876
BRD9876 Chemical Structure CAS No.: 32703-82-5
Product category: New1
This product is for research use only, not for human use. We do not sell to patients.
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Product Description
BRD9876 is a “rigor” inhibitor that locks kinesin 5 (Eg5) in a state that enhances microtubule (MTs) binding, leading to MT bundling and stabilization. BRD9876 interacts with tyrosine 104 residue, which is part of the α4-α6 allosteric binding pocket. BRD9876 specifically targets microtubule-bound Eg5 and selectively inhibits myeloma in CD34 cells. BRD9876 has the potential for multiple myeloma (MM) research.
Biological Activity I Assay Protocols (From Reference)
ln Vitro
As early as two hours after treating MM1S cells, BRD9876 (10 μM; 24 hours) rapidly arrests cells in the G2/M phase [1]. Compared to CD34+-derived hematopoietic cells (IC50=9.1 μM), BRD9876 is around three times more selective for MM1S myeloma cells (IC50=3.1 μM) [1]. The stromal resistance of bone marrow stromal cells (BMSCs) from MM bone marrow aspirates in MM1S cells can be overcome by BRD9876 (0.1, 1, 10, 100 uM); however, BRD9876 has very little effect on primary MM cells [1]. While cyclic L5 paired with monastrol or α4/α6 combined with BI8 display higher activity on baseline Eg5 ATPase activity, BRD9876 is absolutely ineffective in reducing this activity [1].
Cell Assay
Cell cycle analysis [1]
Cell Types: MM1S cells and CD34 hematopoietic cells
Tested Concentrations: 10 μM
Incubation Duration: 24 hrs (hours)
Experimental Results: In MM1S cells, cells rapidly arrested in the G2/M phase as early as 2 hrs (hours) after treatment. The G2/M phase arrest of CD34 hematopoietic cells was Dramatically diminished.
References

[1]. Niche-Based Screening in Multiple Myeloma Identifies a Kinesin-5 Inhibitor with Improved Selectivity over Hematopoietic Progenitors. Cell Rep. 2015 Feb 10;10(5):755-770.

[2]. HSP70 regulates Eg5 distribution within the mitotic spindle and modulates the cytotoxicity of Eg5 inhibitors. Cell Death Dis. 2020 Sep 1;11(8):715.

[3]. The therapeutic potential of cell cycle targeting in multiple myeloma. Oncotarget. 2017 Jun 28;8(52):90501-90520.

[4]. Eg5 Inhibitors Have Contrasting Effects on Microtubule Stability and Metaphase Spindle Integrity. ACS Chem Biol. 2017 Apr 21;12(4):1038-1046.

Additional Infomation
6-tert-butylnaphthalene-2,3-dicarbonitrile is a member of naphthalenes.
These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C16H14N2
Molecular Weight
234.3
Exact Mass
234.116
CAS #
32703-82-5
PubChem CID
613000
Appearance
White to yellow solid powder
Density
1.11g/cm3
Boiling Point
429.7ºC at 760 mmHg
Melting Point
185-189ºC(lit.)
Flash Point
206.6ºC
Index of Refraction
1.603
LogP
3.88
Hydrogen Bond Donor Count
0
Hydrogen Bond Acceptor Count
2
Rotatable Bond Count
1
Heavy Atom Count
18
Complexity
400
Defined Atom Stereocenter Count
0
InChi Key
MKILROQBJOOZKC-UHFFFAOYSA-N
InChi Code
InChI=1S/C16H14N2/c1-16(2,3)15-5-4-11-6-13(9-17)14(10-18)7-12(11)8-15/h4-8H,1-3H3
Chemical Name
6-tert-butylnaphthalene-2,3-dicarbonitrile
Synonyms
BRD 9876; BRD-9876; BRD9876
HS Tariff Code
2934.99.9001
Storage

Powder      -20°C    3 years

                     4°C     2 years

In solvent   -80°C    6 months

                  -20°C    1 month

Note: Please store this product in a sealed and protected environment, avoid exposure to moisture.
Shipping Condition
Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)
Solubility Data
Solubility (In Vitro)
DMSO : ~50 mg/mL (~213.40 mM)
Solubility (In Vivo)
Solubility in Formulation 1: ≥ 2.5 mg/mL (10.67 mM) (saturation unknown) in 10% DMSO + 90% Corn Oil (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 900 μL of corn oil and mix evenly.

 (Please use freshly prepared in vivo formulations for optimal results.)
Preparing Stock Solutions 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
10 mM 0.4268 mL 2.1340 mL 4.2680 mL

*Note: Please select an appropriate solvent for the preparation of stock solution based on your experiment needs. For most products, DMSO can be used for preparing stock solutions (e.g. 5 mM, 10 mM, or 20 mM concentration); some products with high aqueous solubility may be dissolved in water directly. Solubility information is available at the above Solubility Data section. Once the stock solution is prepared, aliquot it to routine usage volumes and store at -20°C or -80°C. Avoid repeated freeze and thaw cycles.

Calculator

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An example of molarity calculation using the molarity calculator is shown below:
What is the mass of compound required to make a 10 mM stock solution in 5 ml of DMSO given that the molecular weight of the compound is 350.26 g/mol?
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  • The answer of 17.513 mg appears in the Mass box. In a similar way, you may calculate the volume and concentration.

Dilution Calculator allows you to calculate how to dilute a stock solution of known concentrations. For example, you may Enter C1, C2 & V2 to calculate V1, as detailed below:

What volume of a given 10 mM stock solution is required to make 25 ml of a 25 μM solution?
Using the equation C1V1 = C2V2, where C1=10 mM, C2=25 μM, V2=25 ml and V1 is the unknown:
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g/mol

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Note: Chemical formula is case sensitive: C12H18N3O4  c12h18n3o4
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In vivo Formulation Calculator (Clear solution)
Step 1: Enter information below (Recommended: An additional animal to make allowance for loss during the experiment)
Step 2: Enter in vivo formulation (This is only a calculator, not the exact formulation for a specific product. Please contact us first if there is no in vivo formulation in the solubility section.)
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Calculation results

Working concentration mg/mL;

Method for preparing DMSO stock solution mg drug pre-dissolved in μL DMSO (stock solution concentration mg/mL). Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug.

Method for preparing in vivo formulation:Take μL DMSO stock solution, next add μL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O,mix and clarify.

(1) Please be sure that the solution is clear before the addition of next solvent. Dissolution methods like vortex, ultrasound or warming and heat may be used to aid dissolving.
             (2) Be sure to add the solvent(s) in order.

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