Tezacaftor (VX-661)

Alias: VX-661; Trikafta; VX661; VX 661.
Cat No.:V1691 Purity: ≥98%
Tezacaftor (formerly VX-661; VX661; VX 661;trade name:Symdeko) is a second F508del CFTR corrector with antifibrotic effects and is alsoone of three components in thefixed-dose combination medication (cocktail: Elexacaftor/tezacaftor/ivacaftor, Trikafta and Kaftrio) used in patients who have cystic fibrosis with a F508del mutation.
Tezacaftor (VX-661) Chemical Structure CAS No.: 1152311-62-0
Product category: Calcium Channel
This product is for research use only, not for human use. We do not sell to patients.
Size Price Stock Qty
5mg
10mg
25mg
50mg
100mg
250mg
500mg
Other Sizes

Other Forms of Tezacaftor (VX-661):

  • Tezacaftor-d4 (VX-661-d4)
  • (Rac)-Tezacaftor ((Rac)-VX-661)
Official Supplier of:
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Purity & Quality Control Documentation

Purity: ≥98%

Product Description

Tezacaftor (formerly VX-661; VX661; VX 661; trade name: Symdeko) is a second F508del CFTR corrector with antifibrotic effects and is also one of three components in the fixed-dose combination medication (cocktail: Elexacaftor/tezacaftor/ivacaftor, Trikafta and Kaftrio) used in patients who have cystic fibrosis with a F508del mutation. Tezacaftor is able to help CFTR protein reach the cell surface. VX-661 can be potentially used for treatment of cystic fibrosis disease. In Feb 2018, Tezacaftor was approved by FDA to treat cystic fibrosis in patients age 12 years and older. Cystic fibrosis (CF) is a genetic disease caused by defects in the CF transmembrane regulator (CFTR) gene, which encodes an epithelial chloride channel. The most common mutation, Δ508CFTR, produces a protein that is misfolded and does not reach the cell membrane. VX-661 can correct trafficking of Δ508CFTR and partially restore chloride channel activity.

Biological Activity I Assay Protocols (From Reference)
ln Vitro

In vitro activity: VX-661, known as a CTFR corrector, allows F508del mutant channels to escape degradation and transit to the cell membrane.


Kinase Assay: In vitro, a combination of VX-661 and ivacaftor results in greater CFTR activity compared with VX-661 alone.


Cell Assay: VX-661 treated alone or in combination with ivacaftor have shown to enhance F508del-CFTR trafficking to the cell surface. VX-661 has been at phase 2 study

ln Vivo

Animal Protocol


References
Sci Transl Med.2014 Jul 23;6(246):246ra97.
These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C26H27F3N2O6
Molecular Weight
520.5
CAS #
1152311-62-0
Related CAS #
Tezacaftor-d4;1961280-24-9;(Rac)-Tezacaftor;1226709-85-8
SMILES
O=C(C1(C2=CC=C(OC(F)(F)O3)C3=C2)CC1)NC4=CC5=C(N(C[C@@H](O)CO)C(C(C)(C)CO)=C5)C=C4F
Synonyms
VX-661; Trikafta; VX661; VX 661.
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 (192.1 mM)
Water:<1 mg/mL
Ethanol:<1 mg/mL
Solubility (In Vivo)
Solubility in Formulation 1: ≥ 2.5 mg/mL (4.80 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 (4.80 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 (4.80 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 1.9212 mL 9.6061 mL 19.2123 mL
5 mM 0.3842 mL 1.9212 mL 3.8425 mL
10 mM 0.1921 mL 0.9606 mL 1.9212 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?
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  • Enter 10 in the Concentration box and choose the correct unit (mM)
  • Enter 5 in the Volume box and choose the correct unit (mL)
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  • 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:
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  • 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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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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