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3-Bromopyridin-2-ol

Cat No.:V65309 Purity: ≥98%
3-Bromopyridin-2-ol is a biochemical compound that may be utilized as a biomaterial or organic/chemical reagent for biomedical research.
3-Bromopyridin-2-ol
3-Bromopyridin-2-ol Chemical Structure CAS No.: 13466-43-8
Product category: Biochemical Assay Reagents
This product is for research use only, not for human use. We do not sell to patients.
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Product Description
3-Bromopyridin-2-ol is a biochemical compound that may be utilized as a biomaterial or organic/chemical reagent for biomedical research.
3-Bromopyridin-2-ol (CAS 13466-43-8), also known as 3-bromo-2-hydroxypyridine, is a heterocyclic building block containing a pyridine core with a bromine at the 3-position and a hydroxyl/keto group at the 2-position. Its molecular formula is C5H4BrNO with a molecular weight of 173.99 g/mol. This compound serves as a biochemical reagent and organic/chemical intermediate for biomedical research. It is utilized as a biomaterial for life science research and as a sulfonylation reagent for organic synthesis and drug discovery. The compound can exist in tautomeric forms as either the hydroxypyridine or the pyridone, providing versatile reactivity for synthetic applications.
Biological Activity I Assay Protocols (From Reference)
Targets
3-Bromopyridin-2-ol does not have a defined primary pharmacological target as it is primarily a chemical reagent and synthetic intermediate. In medicinal chemistry, the compound serves as a building block for constructing pyridine-containing drug candidates. The bromine atom enables cross-coupling reactions such as Suzuki-Miyaura, Sonogashira, and Buchwald-Hartwig couplings. The hydroxyl/keto group provides a handle for hydrogen bonding and further derivatization. The pyridone scaffold is a common motif in many pharmacologically active compounds, including kinase inhibitors, antimicrobial agents, and antiviral agents. The compound's tautomeric nature provides additional versatility for drug design.
ln Vitro
In vitro activity of 3-Bromopyridin-2-ol as a standalone compound is not typically evaluated, as its primary role is as a synthetic intermediate. The compound's biological activity would be assessed through the final drug molecules synthesized from this building block. In biochemical research, the compound may be used as a reference or as a starting material for generating compound libraries. The pyridone scaffold is known to be present in various pharmacologically active compounds, and the bromine substituent provides a handle for introducing diverse functional groups to optimize biological activity and drug-like properties.
ln Vivo
In vivo activity data for 3-Bromopyridin-2-ol are not available, as the compound is not intended for direct administration as a therapeutic agent. It is classified as a biochemical reagent and organic synthesis intermediate. Any in vivo effects would be associated with the final drug products synthesized from this intermediate rather than the compound itself. The compound's role in drug discovery is to enable the synthesis of complex molecular scaffolds that can be evaluated in animal models of disease. Researchers handling this compound should follow appropriate safety protocols for chemical handling in laboratory settings.
Enzyme Assay
In vitro enzyme or receptor binding assays for 3-Bromopyridin-2-ol are not standard, as the compound is a chemical reagent rather than a drug candidate. If evaluated as a potential ligand, typical binding assays might involve radioligand displacement or surface plasmon resonance techniques. For enzyme inhibition studies, purified enzyme is incubated with varying concentrations of the compound in appropriate buffer systems. However, such studies are more commonly performed on the final pharmaceutical compounds derived from this building block rather than on the intermediate itself. The compound may serve as a reference or control in certain biochemical experiments.
Cell Assay
Cell-based in vitro experiments using 3-Bromopyridin-2-ol are not typically performed, as the compound is a research chemical and synthetic intermediate. When used in cell biology research, the compound might be incorporated into larger molecules that are then tested on cultured cell lines. Standard cell culture protocols would involve seeding cells in appropriate media at 37°C in a 5% CO₂ atmosphere, treating with test compounds at various concentrations, and assessing cell viability, proliferation, or other endpoints using standard assays. The compound's solvent compatibility (typically DMSO) and potential cytotoxicity should be considered.
Animal Protocol
In vivo animal studies are not conducted with 3-Bromopyridin-2-ol itself, as it is a chemical reagent rather than a therapeutic agent. The compound is utilized in the synthesis of drug candidates that may subsequently be evaluated in animal models. Typical in vivo protocols for drug candidates synthesized from this building block would involve administration via oral gavage, intravenous injection, or intraperitoneal injection to rodents at various dose levels. Pharmacodynamic endpoints, pharmacokinetic sampling, and toxicological assessments would be performed according to the specific research objectives. All animal studies must be conducted in accordance with institutional guidelines.
ADME/Pharmacokinetics
Pharmacokinetic properties of 3-Bromopyridin-2-ol have not been characterized, as the compound is a chemical reagent for research use. As a small heterocyclic molecule with molecular weight 173.99 g/mol, it would be expected to have moderate aqueous solubility. The hydroxyl group would be ionizable, affecting the compound's ionization state and membrane permeability at physiological pH. The bromine atom may influence metabolic pathways. The compound's LogP is estimated to be around 1.0–1.5, indicating moderate hydrophilicity. However, these properties are not studied for the compound itself, as it is not developed as a pharmaceutical. For drug discovery applications, the pharmacokinetic profile would be optimized at the final drug candidate stage.
Toxicity/Toxicokinetics
Toxicological data for 3-Bromopyridin-2-ol are limited, as the compound is handled as a research chemical in laboratory environments. Standard safety precautions should be followed, including the use of appropriate personal protective equipment such as gloves, goggles, and lab coats. The compound may cause irritation to skin, eyes, and respiratory tract upon exposure. Inhalation of dust should be avoided, and adequate ventilation should be ensured. In case of contact, affected areas should be rinsed with plenty of water. The compound should be stored in a cool, dry place away from strong oxidizing agents and light. Comprehensive toxicological studies have not been reported for this compound.
Additional Infomation
3-Bromopyridin-2-ol is a chemical research tool and synthetic intermediate rather than an approved pharmaceutical drug. Its primary applications are in organic synthesis and drug discovery, where it serves as a versatile building block for constructing pyridine and pyridone-containing compounds. The pyridone scaffold is a common motif in kinase inhibitors, antimicrobial agents, and antiviral agents. The bromine substituent enables further functionalization through cross-coupling reactions, allowing for the synthesis of diverse compound libraries. The compound's tautomeric nature provides additional versatility for synthetic applications. No clinical trials or regulatory approvals have been documented for this compound as a therapeutic agent. The compound is commercially available as a research-grade chemical, supplied for laboratory synthesis and biochemical research.
These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C5H4BRNO
Molecular Weight
174.00
Exact Mass
172.947
CAS #
13466-43-8
PubChem CID
818549
Appearance
Off-white to light brown solid powder
Density
1.8±0.1 g/cm3
Boiling Point
276.4±20.0 °C at 760 mmHg
Melting Point
185-189°C
Flash Point
121.0±21.8 °C
Vapour Pressure
0.0±0.6 mmHg at 25°C
Index of Refraction
1.614
LogP
0.6
Hydrogen Bond Donor Count
1
Hydrogen Bond Acceptor Count
1
Rotatable Bond Count
0
Heavy Atom Count
8
Complexity
171
Defined Atom Stereocenter Count
0
SMILES
BrC1=C([H])C([H])=C([H])N([H])C1=O
InChi Key
YDUGVOUXNSWQSW-UHFFFAOYSA-N
InChi Code
InChI=1S/C5H4BrNO/c6-4-2-1-3-7-5(4)8/h1-3H,(H,7,8)
Chemical Name
3-bromo-1H-pyridin-2-one
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)
May dissolve in DMSO (in most cases), if not, try other solvents such as H2O, Ethanol, or DMF with a minute amount of products to avoid loss of samples
Solubility (In Vivo)
Note: Listed below are some common formulations that may be used to formulate products with low water solubility (e.g. < 1 mg/mL), you may test these formulations using a minute amount of products to avoid loss of samples.

Injection Formulations
(e.g. IP/IV/IM/SC)
Injection Formulation 1: DMSO : Tween 80: Saline = 10 : 5 : 85 (i.e. 100 μL DMSO stock solution 50 μL Tween 80 850 μL Saline)
*Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH ₂ O to obtain a clear solution.
Injection Formulation 2: DMSO : PEG300Tween 80 : Saline = 10 : 40 : 5 : 45 (i.e. 100 μL DMSO 400 μLPEG300 50 μL Tween 80 450 μL Saline)
Injection Formulation 3: DMSO : Corn oil = 10 : 90 (i.e. 100 μL DMSO 900 μL Corn oil)
Example: Take the Injection Formulation 3 (DMSO : Corn oil = 10 : 90) as an example, if 1 mL of 2.5 mg/mL working solution is to be prepared, you can take 100 μL 25 mg/mL DMSO stock solution and add to 900 μL corn oil, mix well to obtain a clear or suspension solution (2.5 mg/mL, ready for use in animals).
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Injection Formulation 4: DMSO : 20% SBE-β-CD in saline = 10 : 90 [i.e. 100 μL DMSO 900 μL (20% SBE-β-CD in saline)]
*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.
Injection Formulation 5: 2-Hydroxypropyl-β-cyclodextrin : Saline = 50 : 50 (i.e. 500 μL 2-Hydroxypropyl-β-cyclodextrin 500 μL Saline)
Injection Formulation 6: DMSO : PEG300 : castor oil : Saline = 5 : 10 : 20 : 65 (i.e. 50 μL DMSO 100 μLPEG300 200 μL castor oil 650 μL Saline)
Injection Formulation 7: Ethanol : Cremophor : Saline = 10: 10 : 80 (i.e. 100 μL Ethanol 100 μL Cremophor 800 μL Saline)
Injection Formulation 8: Dissolve in Cremophor/Ethanol (50 : 50), then diluted by Saline
Injection Formulation 9: EtOH : Corn oil = 10 : 90 (i.e. 100 μL EtOH 900 μL Corn oil)
Injection Formulation 10: EtOH : PEG300Tween 80 : Saline = 10 : 40 : 5 : 45 (i.e. 100 μL EtOH 400 μLPEG300 50 μL Tween 80 450 μL Saline)


Oral Formulations
Oral Formulation 1: Suspend in 0.5% CMC Na (carboxymethylcellulose sodium)
Oral Formulation 2: Suspend in 0.5% Carboxymethyl cellulose
Example: Take the Oral Formulation 1 (Suspend in 0.5% CMC Na) as an example, if 100 mL of 2.5 mg/mL working solution is to be prepared, you can first prepare 0.5% CMC Na solution by measuring 0.5 g CMC Na and dissolve it in 100 mL ddH2O to obtain a clear solution; then add 250 mg of the product to 100 mL 0.5% CMC Na solution, to make the suspension solution (2.5 mg/mL, ready for use in animals).
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Oral Formulation 3: Dissolved in PEG400
Oral Formulation 4: Suspend in 0.2% Carboxymethyl cellulose
Oral Formulation 5: Dissolve in 0.25% Tween 80 and 0.5% Carboxymethyl cellulose
Oral Formulation 6: Mixing with food powders


Note: Please be aware that the above formulations are for reference only. InvivoChem strongly recommends customers to read literature methods/protocols carefully before determining which formulation you should use for in vivo studies, as different compounds have different solubility properties and have to be formulated differently.

 (Please use freshly prepared in vivo formulations for optimal results.)
Preparing Stock Solutions 1 mg 5 mg 10 mg
1 mM 5.7471 mL 28.7356 mL 57.4713 mL
5 mM 1.1494 mL 5.7471 mL 11.4943 mL
10 mM 0.5747 mL 2.8736 mL 5.7471 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:

  • Calculate the Mass of a compound required to prepare a solution of known volume and concentration
  • Calculate the Volume of solution required to dissolve a compound of known mass to a desired concentration
  • Calculate the Concentration of a solution resulting from a known mass of compound in a specific volume
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:
  • To calculate molar mass of a chemical compound, please enter the chemical/molecular formula and click the “Calculate’ button.
Definitions of molecular mass, molecular weight, molar mass and molar weight:
  • Molecular mass (or molecular weight) is the mass of one molecule of a substance and is expressed in the unified atomic mass units (u). (1 u is equal to 1/12 the mass of one atom of carbon-12)
  • 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.

  • Enter the mass of the reagent and the desired reconstitution concentration as well as the correct units
  • Click the “Calculate” button
  • 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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