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NIBR-189

Alias: NIBR189; NIBR 189; NIBR-189
Cat No.:V26464 Purity: ≥98%
NIBR189 is an antagonist of EBI2 (Epstein-Barr virus-induced gene 2).
NIBR-189
NIBR-189 Chemical Structure CAS No.: 1599432-08-2
Product category: GPR
This product is for research use only, not for human use. We do not sell to patients.
Size Price Stock Qty
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10mg
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Product Description
NIBR189 is an antagonist of EBI2 (Epstein-Barr virus-induced gene 2). NIBR189 inhibits EBI2 in humans and mice with IC50s of 11 and 16 nM, respectively. NIBR189 may be utilized in the research/study of autoimmune diseases.
Biological Activity I Assay Protocols (From Reference)
Targets
EBI2 ( IC50 = 11 nM ); EBI2 ( IC50 = 16 nM )
ln Vitro
NIBR189, an EBI2 antagonist, inhibits migration with an IC50 of 0.3 nM in U937 cells expressing functional EBI2 levels.[1]
ln Vivo
NIBR189 possesses pharmacokinetic qualities that should enable its application in both in vitro and in vivo research. It is a strong and selective EBI2 antagonist.[1]
Cell Assay
U937 cells were cultured in lipid-depleted media for the entire night before the migration assay. Using HTS Transwell-96 plates with 5.0 μm pore polycarbonate membranes, chemotaxis was carried out. Let's recap: 240 μL of compound solution in media containing 1% BSA instead of FCS was placed in lower chambers, and 0.75×105 cells in 75 μL media were added to the upper chamber once the filters were inserted. Using flow cytometry, the cells in the lower chamber were examined after three hours at 37°C.
Animal Protocol
C57BL/6 male mice
1 mg/kg (i.v.); 3 mg/kg (p.o.)
i.v., p.o.
References

[1]. Identification and characterization of small molecule modulators of the Epstein-Barr virus-induced gene 2 (EBI2) receptor. J Med Chem. 2014 Apr 24;57(8):3358-68.

These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C21H21BRN2O3
Molecular Weight
429.314
Exact Mass
428.074
Elemental Analysis
C, 58.75; H, 4.93; Br, 18.61; N, 6.53; O, 11.18
CAS #
1599432-08-2
PubChem CID
36295259
Appearance
White to off-white solid powder
LogP
3.331
Hydrogen Bond Donor Count
0
Hydrogen Bond Acceptor Count
3
Rotatable Bond Count
4
Heavy Atom Count
27
Complexity
530
Defined Atom Stereocenter Count
0
SMILES
BrC1C([H])=C([H])C(=C([H])C=1[H])/C(/[H])=C(\[H])/C(N1C([H])([H])C([H])([H])N(C(C2C([H])=C([H])C(=C([H])C=2[H])OC([H])([H])[H])=O)C([H])([H])C1([H])[H])=O
InChi Key
OFHXXBRBGWUOHR-NYYWCZLTSA-N
InChi Code
InChI=1S/C21H21BrN2O3/c1-27-19-9-5-17(6-10-19)21(26)24-14-12-23(13-15-24)20(25)11-4-16-2-7-18(22)8-3-16/h2-11H,12-15H2,1H3/b11-4+
Chemical Name
(E)-3-(4-bromophenyl)-1-[4-(4-methoxybenzoyl)piperazin-1-yl]prop-2-en-1-one
Synonyms
NIBR189; NIBR 189; NIBR-189
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

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: ~21~50 mg/mL (~48.9~116.5 mM)
Ethanol: ~4 mg/mL
Solubility (In Vivo)
Solubility in Formulation 1: 2.5 mg/mL (5.82 mM) in 10% DMSO + 90% (20% SBE-β-CD in Saline) (add these co-solvents sequentially from left to right, and one by one), suspension solution; with sonication.
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 20% SBE-β-CD physiological saline solution and mix evenly.
Preparation of 20% SBE-β-CD in Saline (4°C,1 week): Dissolve 2 g SBE-β-CD in 10 mL saline to obtain a clear solution.

Solubility in Formulation 2: ≥ 2.5 mg/mL (5.82 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.
Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH₂ O to obtain a clear solution.

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Solubility in Formulation 3: (saturation unknown) in 5%DMSO + 40%PEG300 + 5%Tween 80+ 50%ddH2O:1.05mg/ml (2.45mM) (add these co-solvents sequentially from left to right, and one by one),
Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH₂ O to obtain a clear solution.


 (Please use freshly prepared in vivo formulations for optimal results.)
Preparing Stock Solutions 1 mg 5 mg 10 mg
1 mM 2.3293 mL 11.6466 mL 23.2932 mL
5 mM 0.4659 mL 2.3293 mL 4.6586 mL
10 mM 0.2329 mL 1.1647 mL 2.3293 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.

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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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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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  • The answer of 62.5 μL (0.1 ml) appears in the Volume (Start) box
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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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