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2-Hydroxyphenylboronic acid

2-Hydroxyphenylboronic acid is a biochemical compound that could be utilized as a biomaterial or organic/chemical reagent for biomedical research.
2-Hydroxyphenylboronic acid
2-Hydroxyphenylboronic acid Chemical Structure CAS No.: 89466-08-0
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
2-Hydroxyphenylboronic acid is a biochemical compound that could be utilized as a biomaterial or organic/chemical reagent for biomedical research.
2-Hydroxyphenylboronic acid (CAS#: 89466-08-0) is an organoboron compound with the molecular formula C6H7BO3 and a molecular weight of 137.93 g/mol. It combines the aromaticity of the benzene ring with the special properties of boric acid in its structure, forming a unique molecular structure. The compound appears as a solid with a melting point of 178-182 °C and a boiling point of 327.3 °C. It contains varying amounts of anhydride and should be stored at room temperature in a cool and dark place, preferably below 15 °C. The compound is a useful research chemical that serves as a building block in organic synthesis. The compound's boronic acid group allows for Suzuki-Miyaura cross-coupling reactions, while the hydroxyl group provides additional functionality for hydrogen bonding and further derivatization. This combination of functional groups makes it valuable for the synthesis of various biologically active molecules and materials.
Biological Activity I Assay Protocols (From Reference)
Targets
2-Hydroxyphenylboronic acid does not have a specific primary biological target, as it functions primarily as a chemical reagent and synthetic intermediate rather than a direct pharmacological agent. However, the compound's boronic acid group can form reversible covalent bonds with diols and other nucleophilic groups in biological molecules, enabling interactions with sugars, glycoproteins, and enzymes. The hydroxyl group can participate in hydrogen bonding with biological targets. Boronic acids are known to inhibit serine proteases and other enzymes through covalent modification of active site residues. The compound may serve as a precursor for the synthesis of enzyme inhibitors, particularly those targeting proteases and glycosidases. Its ability to form reversible covalent bonds with diols makes it valuable for the development of sensors and targeted drug delivery systems.
ln Vitro
2-Hydroxyphenylboronic acid is employed as an intermediary in pharmaceuticals.
In vitro, 2-hydroxyphenylboronic acid is used as a building block in organic synthesis for the construction of more complex molecules. The compound's boronic acid group allows for Suzuki-Miyaura cross-coupling reactions with aryl halides to form biaryl compounds. The hydroxyl group provides additional functionality for further derivatization through etherification, esterification, and other transformations. The compound is a useful research chemical that serves as a building block in organic synthesis. In medicinal chemistry, it serves as a scaffold for the synthesis of boronic acid-containing drug candidates, particularly protease inhibitors and other enzyme inhibitors. Its ability to form reversible covalent bonds with diols makes it valuable for the development of sensors for glucose and other sugars. In materials science, it is used in the synthesis of boronate ester-containing polymers and materials.
Enzyme Assay
Cell-free assays for 2-hydroxyphenylboronic acid are focused on its use as a chemical reagent. Standard protocols for Suzuki-Miyaura coupling involve mixing the compound with an aryl halide, a palladium catalyst, a base, and an appropriate solvent at elevated temperatures under an inert atmosphere. The reaction progress is monitored by TLC or HPLC, and the products are purified by column chromatography. The compound's ability to form boronate esters with diols can be studied using various analytical techniques including NMR spectroscopy and mass spectrometry. Its use as a building block for pharmaceutical synthesis involves standard organic synthesis procedures.
Cell Assay
Cellular assays are not commonly performed with 2-hydroxyphenylboronic acid itself, as it is primarily a chemical intermediate rather than a bioactive compound. However, its derivatives may be evaluated in cell-based systems for various biological activities. Boronic acid derivatives are tested in cancer cell lines for antiproliferative activity, in enzyme assays for inhibitory activity, and in sensor applications for glucose detection. The parent compound itself is not used as a test article in cell-based experiments due to its primary role as a synthetic building block. Instead, it is used in the synthesis of drug candidates that are subsequently tested in cellular assays.
Animal Protocol
Animal studies are not conducted with the parent compound 2-hydroxyphenylboronic acid. Its derivatives may be evaluated in animal models for therapeutic efficacy, but the parent compound itself is not administered to animals. Boronic acid derivatives are known to have various pharmacological activities, and derivatives of this compound may be tested in animal models of cancer, diabetes, or infectious diseases. The parent compound itself is not used in animal studies due to its role as a synthetic intermediate.
ADME/Pharmacokinetics
Pharmacokinetic data for 2-hydroxyphenylboronic acid are not available, as the compound is primarily a chemical reagent rather than a drug candidate. With a molecular weight of 137.93 g/mol and a melting point of 178-182 °C, the compound would be expected to have moderate polarity and limited membrane permeability if administered. However, comprehensive pharmacokinetic studies including absorption, distribution, metabolism, and excretion have not been performed, as the compound is not intended for therapeutic use. For research purposes, the compound is typically handled as a neat chemical and not administered to living organisms for pharmacokinetic profiling.
Additional Infomation
2-Hydroxyphenylboronic acid is a research chemical, not an approved drug. It has no clinical trial or marketing approval status for therapeutic use. The compound combines the aromaticity of the benzene ring with the special properties of boric acid in its structure. It is a useful research chemical that serves as a building block in organic synthesis. The compound has a molecular formula of C6H7BO3 and a molecular weight of 137.93 g/mol. It has a melting point of 178-182 °C and a boiling point of 327.3 °C. It contains varying amounts of anhydride and should be stored at room temperature in a cool and dark place, preferably below 15 °C.
These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C6H7BO3
Molecular Weight
137.93
Exact Mass
138.048
CAS #
89466-08-0
PubChem CID
2773454
Appearance
White to off-white solid powder
Density
1.3±0.1 g/cm3
Boiling Point
327.3±44.0 °C at 760 mmHg
Melting Point
178-182°C
Flash Point
151.7±28.4 °C
Vapour Pressure
0.0±0.7 mmHg at 25°C
Index of Refraction
1.582
LogP
0.85
Hydrogen Bond Donor Count
3
Hydrogen Bond Acceptor Count
3
Rotatable Bond Count
1
Heavy Atom Count
10
Complexity
107
Defined Atom Stereocenter Count
0
SMILES
OB(C1C(O)=CC=CC=1)O
InChi Key
YDMRDHQUQIVWBE-UHFFFAOYSA-N
InChi Code
InChI=1S/C6H7BO3/c8-6-4-2-1-3-5(6)7(9)10/h1-4,8-10H
Chemical Name
(2-hydroxyphenyl)boronic acid
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 (e.g. under nitrogen), 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)
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 7.2501 mL 36.2503 mL 72.5005 mL
5 mM 1.4500 mL 7.2501 mL 14.5001 mL
10 mM 0.7250 mL 3.6250 mL 7.2501 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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