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1-Cyclohexeneboronic acid pinacol ester

Cat No.:V64390 Purity: ≥98%
1-Cyclohexeneboronic acid pinacol ester is a biochemical compound that could be utilized as a biomaterial or organic/chemical reagent for biomedical research.
1-Cyclohexeneboronic acid pinacol ester
1-Cyclohexeneboronic acid pinacol ester Chemical Structure CAS No.: 141091-37-4
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
1-Cyclohexeneboronic acid pinacol ester is a biochemical compound that could be utilized as a biomaterial or organic/chemical reagent for biomedical research.
1-Cyclohexeneboronic acid pinacol ester (CAS 141091-37-4) is an organoboron compound classified as a cycloalkenyl boronic ester derivative. It is a colorless to pale yellow liquid at room temperature, with the molecular formula C₁₂H₂₁BO₂ and a molecular weight of 208.11 g/mol. The compound has a density of 0.968 g/cm³, a predicted boiling point of 232±33°C at 760 mmHg, and a refractive index of 1.4650-1.4690. As a pinacol-protected boronic ester, it is primarily utilized as a coupling partner in Suzuki-Miyaura cross-coupling reactions to introduce a cyclohexenyl moiety into complex molecular frameworks. The compound is widely employed in pharmaceutical synthesis, agrochemical development, and advanced organic chemistry research. It is also used in the synthesis of PET tracers for positron emission tomography imaging. The compound is typically stored under refrigerated conditions (2-8°C) for manageable inventory management. Standard pack sizes range from 10 mg to bulk custom quantities. The compound is usually in stock and custom synthesis is available on request.
Biological Activity I Assay Protocols (From Reference)
Targets
This compound does not have a defined pharmacological target as it is a synthetic reagent rather than a therapeutic agent. Its primary applications are in organic synthesis and radiochemistry, where it serves as a precursor or intermediate rather than a bioactive molecule with specific receptor or enzyme interactions. The compound's utility lies in its chemical reactivity as a boronic ester, particularly its ability to participate in palladium-catalyzed cross-coupling reactions with organic halides or pseudohalides. In recent years, the Suzuki coupling of cyclohexen-1-boronic acid pinacol ester with corresponding chlorinated, brominated or iodinated heterocyclic and aromatic compounds has become a commonly used method for introducing cyclohexenyl groups. The compound's role is strictly as a chemical building block rather than a pharmacologically active agent.
ln Vitro
As a chemical reagent, 1-Cyclohexeneboronic acid pinacol ester does not exhibit intrinsic biological activity in vitro. Its utility lies in its chemical reactivity, particularly its ability to participate in palladium-catalyzed cross-coupling reactions with organic halides or pseudohalides to generate substituted cyclohexene derivatives for further biological evaluation. The compound serves as a valuable reagent in cross-coupling reactions, widely utilized in pharmaceutical synthesis. The compound's value is in its role as a versatile intermediate in organic synthesis, particularly in the development of pharmaceuticals and agrochemicals through cross-coupling methodologies. The compound's activity is chemical rather than biological, making it an essential tool for medicinal chemistry research.
ln Vivo
No in vivo biological activity has been reported for this compound, as it is not intended for therapeutic use. Its applications are confined to chemical synthesis and research settings, where it serves as a building block for the preparation of biologically active molecules or imaging agents. The compound may be used in the preparation of PET tracers for in vivo imaging studies, but the tracer itself, not this reagent, is the subject of animal experiments. The compound's role is strictly as a synthetic intermediate rather than a pharmacologically active agent.
Enzyme Assay
Not applicable; this compound is a chemical reagent and does not have established enzyme or receptor binding assay protocols in a pharmacological context. Standard characterization methods include NMR, HPLC, and GC to confirm purity and structural integrity. The compound's purity is typically specified at ≥95%. Characterization involves analytical methods to confirm the structure and purity of the boronic ester. The compound's identity is confirmed by techniques such as NMR spectroscopy and mass spectrometry.
Cell Assay
Not applicable; no cell-based assays are performed with this compound as a test article. It may be used indirectly in cell culture studies as a precursor for synthesizing compounds that are subsequently evaluated for biological activity. The compound is a research chemical intended for use as a synthetic building block rather than a directly testable pharmacological agent in cell-based assays.
Animal Protocol
Not applicable; no animal studies are conducted with this compound as a primary test agent. It may be used in the preparation of PET tracers for in vivo imaging studies, but the tracer itself, not this reagent, is the subject of animal experiments. The compound's role is strictly as a synthetic intermediate.
ADME/Pharmacokinetics
Not applicable; pharmacokinetic properties have not been characterized for this compound as it is not a drug candidate. The compound is a chemical reagent used in synthesis rather than a therapeutic agent, and thus pharmacokinetic parameters such as absorption, distribution, metabolism, and excretion have not been studied.
Toxicity/Toxicokinetics
As a boronic acid ester, this compound should be handled with standard laboratory safety precautions. No specific toxicity data are available for this reagent; however, boronic acid derivatives are generally considered to have low acute toxicity. Proper personal protective equipment should be used during handling. The compound has a flash point of 103°C and should be stored away from ignition sources. Standard laboratory safety protocols should be followed when handling this organoboron compound.
Additional Infomation
This compound is widely available as a research chemical and is not an approved pharmaceutical. It is classified as a biochemical reagent for life science research and is not intended for human therapeutic use. Its value lies in its role as a versatile intermediate in organic synthesis, particularly in the development of pharmaceuticals and agrochemicals through cross-coupling methodologies. The compound serves as a valuable reagent in cross-coupling reactions and is also utilized in the synthesis of PET tracers. The compound is a liquid reagent format supporting automated dispensing platforms. It is not intended for therapeutic or diagnostic use in humans.
These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C12H21BO2
Molecular Weight
208.11
Exact Mass
208.163
CAS #
141091-37-4
PubChem CID
10932675
Appearance
Colorless to light yellow liquid(Density:0.968 g/cm3)
Density
1.0±0.1 g/cm3
Boiling Point
232.0±33.0 °C at 760 mmHg
Flash Point
94.1±25.4 °C
Vapour Pressure
0.1±0.4 mmHg at 25°C
Index of Refraction
1.464
LogP
3.118
Hydrogen Bond Donor Count
0
Hydrogen Bond Acceptor Count
2
Rotatable Bond Count
1
Heavy Atom Count
15
Complexity
265
Defined Atom Stereocenter Count
0
SMILES
CC1(C)C(C)(C)OB(C2=CCCCC2)O1
InChi Key
QNZFUMVTUFOLRT-UHFFFAOYSA-N
InChi Code
InChI=1S/C12H21BO2/c1-11(2)12(3,4)15-13(14-11)10-8-6-5-7-9-10/h8H,5-7,9H2,1-4H3
Chemical Name
2-(cyclohexen-1-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane
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 (480.52 mM)
Solubility (In Vivo)
Solubility in Formulation 1: ≥ 2.5 mg/mL (12.01 mM) (saturation unknown) in 10% DMSO + 40% PEG300 + 5% Tween80 + 45% Saline (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 400 μL PEG300 and mix evenly; then add 50 μL Tween-80 to the above solution and mix evenly; then add 450 μL normal saline to 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: ≥ 2.5 mg/mL (12.01 mM) (saturation unknown) in 10% DMSO + 90% (20% SBE-β-CD in Saline) (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 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.

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Solubility in Formulation 3: ≥ 2.5 mg/mL (12.01 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 4.8052 mL 24.0258 mL 48.0515 mL
5 mM 0.9610 mL 4.8052 mL 9.6103 mL
10 mM 0.4805 mL 2.4026 mL 4.8052 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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