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Tetrabutylammonium difluorotriphenylsilicate(IV) (TBAT)

Tetrabutylammonium difluorotriphenylsilicate(IV) (TBAT) is an organic/chemical reagent extensively used as a catalyst and surfactant.
Tetrabutylammonium difluorotriphenylsilicate(IV) (TBAT)
Tetrabutylammonium difluorotriphenylsilicate(IV) (TBAT) Chemical Structure CAS No.: 163931-61-1
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
25g
50g
Other Sizes
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Product Description
Tetrabutylammonium difluorotriphenylsilicate(IV) (TBAT) is an organic/chemical reagent extensively used as a catalyst and surfactant. It can play a catalytic role in certain organic synthesis reactions and could be utilized as a cleaning agent, lubricant and stabilizer. In addition, the compound is extensively used in certain industrial sectors, such as in plastics, rubber and textile manufacturing processes.
Tetrabutylammonium difluorotriphenylsilicate(IV) (TBAT, CAS 163931-61-1) is a quaternary ammonium difluorosilicate reagent with the molecular formula C₃₄H₅₁F₂NSi and a molecular weight of 539.87 g/mol. It appears as a powder to crystalline solid with a melting point of 157-163°C and is soluble in most organic solvents. This compound serves as a non-hygroscopic, organic-soluble nucleophilic fluoride source. It is an anion-exchange resin utilized in laboratory experiments for chromatography, catalysis, and electrochemistry. The compound consists of a tetrabutylammonium cation and a negatively charged difluorotriphenylsilicate group.
Biological Activity I Assay Protocols (From Reference)
Targets
TBAT does not have a defined biological drug target as it is a chemical reagent used in organic synthesis rather than a therapeutic agent. The compound serves as a source of fluoride ions in various chemical reactions, including nucleophilic fluorination, desilylation, and other transformations. The difluorotriphenylsilicate anion provides a stable, non-hygroscopic source of "naked" fluoride that is soluble in organic solvents. In biological research, the compound may be used for the synthesis of fluorinated drug candidates, as fluorine incorporation is a common strategy in medicinal chemistry to modulate drug properties.
ln Vitro
A biochemical reagent called tetrabutylammonium difluorotriphenylsilicate (IV) can be utilized in life science research as an organic compound or biological material.
As a chemical reagent, TBAT is not evaluated for direct in vitro biological activity against specific molecular targets. The compound is used as a tool in organic synthesis for the preparation of fluorinated compounds, including potential drug candidates. The fluoride ion released from TBAT can participate in various chemical transformations, but the compound itself is not designed to interact with biological systems. Its applications are strictly chemical rather than biological in nature.
ln Vivo
TBAT is not evaluated for in vivo activity as it is a chemical reagent rather than a therapeutic agent. The compound's utility lies in its role as a synthetic tool for the preparation of fluorinated drug candidates, which may subsequently be tested in animal models. The fluoride source itself is not intended for direct administration to living organisms. Its applications remain in chemical synthesis and materials science.
Enzyme Assay
Cell-free biochemical assays involving TBAT typically focus on its use as a fluorinating reagent in organic synthesis rather than as an enzyme inhibitor. A standard protocol for nucleophilic fluorination involves dissolving TBAT in an appropriate organic solvent (e.g., THF, DCM, or acetonitrile) and adding it to a substrate containing a leaving group (e.g., mesylate, tosylate, or triflate). The reaction is typically carried out at room temperature or with mild heating for several hours. TBAT can also be used for desilylation reactions (removal of silyl protecting groups). Reactions are monitored by TLC or GC-MS and products are characterized by NMR and mass spectrometry.
Cell Assay
Cell-based assays are not typically performed with TBAT as the compound is a chemical reagent rather than a drug candidate. The compound may be used in the synthesis of fluorinated compounds that are subsequently tested in cell-based assays. For example, fluorinated drug candidates synthesized using TBAT may be evaluated in cancer cell lines or other disease-relevant cell models. The reagent itself is not tested in cell-based assays.
Animal Protocol
In vivo studies are not conducted with TBAT itself. The compound is used as a reagent for the synthesis of fluorinated drug candidates, which may then be evaluated in animal models. A typical protocol for in vivo efficacy studies involves administration of the fluorinated test compound to rodents, with monitoring of disease progression through appropriate endpoints. TBAT serves only as a synthetic tool in the preparation of such compounds.
ADME/Pharmacokinetics
As a chemical reagent rather than a drug, pharmacokinetic data for TBAT is not applicable. The compound's molecular weight is 539.87 g/mol and it is soluble in most organic solvents. The compound should be stored refrigerated (0-10°C). For fluorinated drug candidates synthesized using TBAT, PK parameters depend on the overall molecular structure and are determined empirically. Fluorine incorporation can significantly affect drug metabolism and pharmacokinetics.
Toxicity/Toxicokinetics
Toxicological data specific to TBAT is limited. As with all chemical reagents, standard laboratory safety precautions should be observed when handling this compound. The compound should be handled in a well-ventilated area with appropriate personal protective equipment. The compound's non-hygroscopic nature makes it easier to handle than other fluoride sources. For drug candidates synthesized using this reagent, comprehensive toxicological evaluation is required.
Additional Infomation
TBAT (Tetrabutylammonium difluorotriphenylsilicate) is a research chemical and synthetic reagent rather than a pharmaceutical agent. No clinical trials or regulatory approvals exist for this compound. It is commercially available from various chemical suppliers for research purposes only. The compound's primary value lies in its utility as a non-hygroscopic, organic-soluble nucleophilic fluoride source for organic synthesis. It is used in chromatography, catalysis, and electrochemistry applications. In medicinal chemistry, TBAT is valuable for the introduction of fluorine into drug candidates, as fluorination is a common strategy to improve metabolic stability, lipophilicity, and binding affinity.
These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C34H51F2NSI
Molecular Weight
539.86
Exact Mass
539.376
CAS #
163931-61-1
PubChem CID
9893474
Appearance
White to off-white solid powder
Melting Point
157-163ºC(lit.)
LogP
8.046
Hydrogen Bond Donor Count
0
Hydrogen Bond Acceptor Count
3
Rotatable Bond Count
15
Heavy Atom Count
38
Complexity
401
Defined Atom Stereocenter Count
0
SMILES
[Si-](C1C([H])=C([H])C([H])=C([H])C=1[H])(C1C([H])=C([H])C([H])=C([H])C=1[H])(C1C([H])=C([H])C([H])=C([H])C=1[H])(F)F.[N+](C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H])(C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H])(C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H]
InChi Key
RQBKGJOQACIQDG-UHFFFAOYSA-N
InChi Code
InChI=1S/C18H15F2Si.C16H36N/c19-21(20,16-10-4-1-5-11-16,17-12-6-2-7-13-17)18-14-8-3-9-15-18;1-5-9-13-17(14-10-6-2,15-11-7-3)16-12-8-4/h1-15H;5-16H2,1-4H3/q-1;+1
Chemical Name
difluoro(triphenyl)silanuide;tetrabutylazanium
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 1.8523 mL 9.2617 mL 18.5233 mL
5 mM 0.3705 mL 1.8523 mL 3.7047 mL
10 mM 0.1852 mL 0.9262 mL 1.8523 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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