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5-Bromo-7-azaindole

5-Bromo-7-azaindole is a biochemical compound that may be utilized as a biomaterial or organic/chemical reagent for biomedical research.
5-Bromo-7-azaindole
5-Bromo-7-azaindole Chemical Structure CAS No.: 183208-35-7
Product category: Biochemical Assay Reagents
This product is for research use only, not for human use. We do not sell to patients.
Size Price Stock Qty
100g
Other Sizes
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Product Description
5-Bromo-7-azaindole is a biochemical compound that may be utilized as a biomaterial or organic/chemical reagent for biomedical research.
5-Bromo-7-azaindole (5-Bromo-1H-pyrrolo[2,3-b]pyridine, CAS 183208-35-7) is a halogenated azaindole with molecular formula C₇H₅BrN₂ and molecular weight 197.03 g/mol. It is a biochemical compound that may be utilized as a biomaterial or organic/chemical reagent for biomedical research. The compound's azaindole scaffold is a common motif in kinase inhibitors and other bioactive molecules.
Biological Activity I Assay Protocols (From Reference)
Targets
5-Bromo-7-azaindole does not have a defined pharmacological target of its own, as it is a synthetic intermediate. As a halogenated azaindole, it serves as a building block for the synthesis of kinase inhibitors and other biologically active compounds. The bromine atom provides a handle for cross-coupling reactions.
ln Vitro
In vitro, 5-bromo-7-azaindole is primarily used as a chemical reagent and synthetic intermediate. As a halogenated azaindole, it is a common building block for the construction of kinase inhibitors and other drug-like molecules through cross-coupling reactions. The azaindole scaffold is a known kinase hinge-binding motif.
ln Vivo
In vivo activity data for 5-bromo-7-azaindole itself are not available, as the compound is not intended for direct in vivo administration. Rather, it is a precursor used in the synthesis of kinase inhibitors and other drug candidates that are subsequently evaluated in animal models.
Enzyme Assay
For in vitro chemical synthesis, 5-bromo-7-azaindole is used as a building block for the preparation of kinase inhibitors and other compounds. The bromine atom provides a handle for cross-coupling reactions such as Suzuki-Miyaura and Buchwald-Hartwig couplings. The azaindole nitrogen can be alkylated or acylated. Standard protocols involve reacting the compound with appropriate reagents under controlled conditions.
Cell Assay
For in vitro cell-based experiments, 5-bromo-7-azaindole is used as an intermediate in the synthesis of compounds that are tested in cell viability, proliferation, and cytotoxicity assays. The compound itself is not typically evaluated in cell-based assays. Standard cell culture protocols for test compounds synthesized from this intermediate involve dissolving the final product in DMSO and diluting to working concentrations.
Animal Protocol
In vivo animal studies using 5-bromo-7-azaindole are conducted on the final drug compounds synthesized from it, not on the intermediate itself. For kinase inhibitors derived from this building block, efficacy studies would typically be performed in mouse xenograft models of cancer. Standard in vivo protocols involve administration to rodents via oral gavage or intraperitoneal injection.
ADME/Pharmacokinetics
Pharmacokinetic properties of 5-bromo-7-azaindole as a standalone compound are not characterized in the literature. The compound has a molecular weight of 197.03 g/mol, which is within the favorable range for oral bioavailability. The bromine atom may influence metabolic stability and lipophilicity.
Toxicity/Toxicokinetics
5-Bromo-7-azaindole is a research chemical and should be handled with appropriate laboratory safety precautions. As a brominated compound, it may cause skin and eye irritation. The compound is for research use only and not for human therapeutic or diagnostic applications. Specific LD₅₀ values and acute toxicity classifications are not available.
References

[1]. Highly Regioselective and Practical Synthesis of 5-Bromo-4-chloro-3-nitro-7-azaindole. Organic Process Research & Development, 2017, 21(4): 664-668.

[2]. Reinvestigation of the crystal structure, vibrational spectroscopic studies and DFT calculations of 5-bromo-7-azaindole with dual N–H⋅⋅⋅ N hydrogen bonds in dimers. Journal of Molecular Structure, 2015, 1101: 91-100.

Additional Infomation
5-Bromo-7-azaindole (5-Bromo-1H-pyrrolo[2,3-b]pyridine, CAS 183208-35-7) is primarily a research-grade chemical intermediate, not an FDA-approved pharmaceutical drug. Its primary applications are as a building block for the synthesis of kinase inhibitors and other bioactive compounds. No clinical trials or approved therapeutic indications exist.
These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C7H5BRN2
Molecular Weight
197.03
Exact Mass
195.963
CAS #
183208-35-7
PubChem CID
10307932
Appearance
Off-white to light yellow solid powder
Density
1.8±0.1 g/cm3
Boiling Point
311.3±22.0 °C at 760 mmHg
Melting Point
178.0-178.8°C
Flash Point
142.1±22.3 °C
Vapour Pressure
0.0±0.6 mmHg at 25°C
Index of Refraction
1.728
LogP
2.85
Hydrogen Bond Donor Count
1
Hydrogen Bond Acceptor Count
1
Rotatable Bond Count
0
Heavy Atom Count
10
Complexity
129
Defined Atom Stereocenter Count
0
SMILES
BrC1=C([H])N=C2C(=C1[H])C([H])=C([H])N2[H]
InChi Key
LPTVWZSQAIDCEB-UHFFFAOYSA-N
InChi Code
InChI=1S/C7H5BrN2/c8-6-3-5-1-2-9-7(5)10-4-6/h1-4H,(H,9,10)
Chemical Name
5-bromo-1H-pyrrolo[2,3-b]pyridine
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: ~100 mg/mL (~507.5 mM; with ultrasonication)
Solubility (In Vivo)
Solubility in Formulation 1: 5 mg/mL (25.38 mM) in 10% DMSO + 40% PEG300 + 5% Tween-80 + 45% Saline (add these co-solvents sequentially from left to right, and one by one), Suspended solution; with ultrasonication.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of DMSO stock solution (50.0 mg/mL) to 400 μL of PEG300 and mix well; then add 50 μL of Tween-80 and mix well; finally add 450 μL of physiological saline and adjust the volume to 1 mL.
Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH₂ O to obtain a clear solution.

Solubility in Formulation 2: ≥ 5 mg/mL (25.38 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 DMSO stock solution (50.0 mg/mL) to 900 μL of corn oil and mix well.

 (Please use freshly prepared in vivo formulations for optimal results.)
Preparing Stock Solutions 1 mg 5 mg 10 mg
1 mM 5.0754 mL 25.3768 mL 50.7537 mL
5 mM 1.0151 mL 5.0754 mL 10.1507 mL
10 mM 0.5075 mL 2.5377 mL 5.0754 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

Molarity Calculator allows you to calculate the mass, volume, and/or concentration required for a solution, as detailed below:

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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?
  • Enter 350.26 in the Molecular Weight (MW) box
  • Enter 10 in the Concentration box and choose the correct unit (mM)
  • Enter 5 in the Volume box and choose the correct unit (mL)
  • Click the “Calculate” button
  • 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:
  • Enter 10 into the Concentration (Start) box and choose the correct unit (mM)
  • Enter 25 into the Concentration (End) box and select the correct unit (mM)
  • Enter 25 into the Volume (End) box and choose the correct unit (mL)
  • Click the “Calculate” button
  • The answer of 62.5 μL (0.1 ml) appears in the Volume (Start) box
g/mol

Molecular Weight Calculator allows you to calculate the molar mass and elemental composition of a compound, as detailed below:

Note: Chemical formula is case sensitive: C12H18N3O4  c12h18n3o4
Instructions to calculate molar mass (molecular weight) of a chemical compound:
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Definitions of molecular mass, molecular weight, molar mass and molar weight:
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  • Molar mass (molar weight) is the mass of one mole of a substance and is expressed in g/mol.
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Reconstitution Calculator allows you to calculate the volume of solvent required to reconstitute your vial.

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  • The answer appears in the Volume (to add to vial) box
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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