Trifluoroacetic Acid
Trifluoroacetic acid is a corrosive organofluorine compound that is structurally analogous to, but stronger than, acetic acid. Available in various quantities and reagent grades, it is used in NMR spectroscopy, mass spectrometry, organic synthesis, etc.
Almost 100,000-fold more acidic than acetic acid, TFA is widely used in organic chemistry. TFA is used as a reagent in organic synthesis because of its properties: volatility, organic solvent solubility, and acidic strength. It is less oxidizing than sulfuric acid and is more readily available in its anhydrous form than some other acids . Other features include:
- Used in acid-catalyzed reactions, especially peptide synthesis (to cleave esters)
- Dissolves protein when mixed with liquid SO2
- Removes t-butyl derived side-chain protecting groups in Fmoc peptide synthesis
- Can remove the t-butoxycarbonyl protecting group in organic synthesis
- At low concentrations, acts as an ion-pairing agent for peptides and small proteins in organic compound liquid chromatography
- For acid-stable materials, can be a solvent for NMR spectroscopy
- Acts as a calibrant in mass spectrometry
- Used to produce trifluoroacetate salts
- An ingredient in adhesives, sealants, paints, and coatings
When TFA combines with bases and metals, especially light metals, a strong exothermic reaction occurs. When mixed with lithium aluminum hydride (LAH), the reaction is explosive.
Although nonflammable, TFA is corrosive to skin, eyes, and mucous membranes and requires careful use and handling. It is harmful when inhaled, causes severe skin burns and eye damage, and is toxic to aquatic organisms at even low concentrations.
TFA is also a product of the metabolic breakdown of the anesthetic agent halothane. It is the suspected cause of halothane-induced hepatitis.
Medchemexpress LLC Wl47 (TFA) | 99.7% | 1942.32 | 5 MG
WL47 TFA is a high-affinity cavolin-1 (CAV1) ligand that potently disrupts CAV1 oligomers. It shows selectivity for CAV1 over BSA, casein, and HEWL, and is used for studying caveolin-1 function. It is also 80% smaller in length than the original T20 parent sequence.
- High-affinity cavolin-1 (CAV1) ligand (Kd=23 nM)
- Potently disrupts CAV1 oligomers
- Exhibits selectivity for CAV1 over BSA, casein, and HEWL
- Used for studying caveolin-1 function
- 80% smaller in length than original T20 parent sequence
Medchemexpress LLC Gln-AMS TFA | 99.9% | 588.47 | 100 MG
Gln-AMS (TFA) is a type Ia aminoacyl-tRNA synthetase (AARS) inhibitor, specifically inhibiting glutaminyl-tRNA synthetase (GlnRS) with a Ki of 1.32 μM.
- Inhibits glutaminyl-tRNA synthetase (GlnRS)
- Type Ia aminoacyl-tRNA synthetase (AARS) inhibitor
- White to off-white solid
- Purity of 99.85%
- Soluble in DMSO at 100 mg/mL
- Store at -20°C under nitrogen
Medchemexpress LLC L-lysyl-L-cysteine trifluoroacetate | 97.8% | 477.38 g/mol | C13H21F6N3O7S | 5 MG
L-lysyl-L-cysteine trifluoroacetate is a dipeptide formed from lysine and cysteine, provided as a solid TFA salt for research use. The material is characterized by a reported purity, defined molecular formula and molecular weight, and specified storage recommendations for powder and solutions.
- Dipeptide composed of lysine and cysteine.
- Supplied as trifluoroacetate (TFA) salt in solid powder form.
- Reported purity 97.8%.
- Molecular formula C13H21F6N3O7S and molecular weight 477.38 g/mol.
- Available in small research quantities: 5 mg, 10 mg, 25 mg.
- Store sealed, away from moisture; powder: -80°C for 2 years, -20°C for 1 year; in solvent: -80°C for 6 months, -20°C for 1 month.
Medchemexpress LLC Guangxitoxin 1E TFA | ≥95.0% | 3948.61 | 100 UG
Guangxitoxin 1E TFA is the trifluoroacetate salt form of Guangxitoxin 1E, a peptide toxin. It functions as a potent and selective blocker of voltage-gated potassium channels KV2.1 and KV2.2, with an IC50 of 1-3 nM. This compound is intended for research purposes only and is not for human therapeutic use.
- Potent and selective blocker of KV2.1 and KV2.2 channels (IC50 of 1-3 nM)
- Inhibits KV4.3 channels (IC50 of 24-54 nM)
- Inhibits 90% of IDR in mouse β-cells
- Shifts voltage dependence of channel activation to more depolarized potentials
- Broadens β-cell action potential
- Enhances glucose-stimulated intracellular calcium oscillations
- Increases insulin secretion from mouse pancreatic islets in a glucose-dependent manner
Medchemexpress LLC MM-102 trifluoroacetate | 1883545-52-5 | 99.7% | 2 MG
MM-102 TFA is the trifluoroacetate salt of MM-102, a research reagent that inhibits the WDR5/MLL protein-protein interaction. It is supplied as high-purity solid and as DMSO solution formats for biochemical and cellular studies, with reported potency in WDR5 binding assays.
- Potent inhibitor of the WDR5/MLL protein-protein interaction.
- Reported IC50 = 2.4 nM in WDR5 binding assay.
- High reported purity (99.68%).
- Available in small solid quantities and as 10 mM in DMSO solution.
- Trifluoroacetate salt form for convenient handling and solubility.
Medchemexpress LLC Tam557 Tfa | 98.5% | 1119.34 | 5 MG
TAM557 TFA is a cytotoxic tubulysin compound modified for conjugation to transport vehicles such as proteins, peptides, small molecules, or polymeric carriers that can carry a targeting principle. It is for research use only and not sold to patients.
- Cytotoxic tubulysin compound
- Modified for conjugation to transport vehicles
- Available in 1 mg, 5 mg, 10 mg, and 50 mg sizes
Medchemexpress LLC PBX-7011 TFA | 98.6% | 561.46 | 1 MG
PBX-7011 TFA is a derivative of camptothecin, which inhibits the expressions of cancer-related survival genes DDX5, Survivin, Mcl-1, and XIAP in FaDu cells. It degrades DDX5 proteins and exhibits anticancer activity. This product is for research use only and not sold to patients.
- Inhibits expression of cancer-related survival genes DDX5, Survivin, Mcl-1, and XIAP.
- Degrades DDX5 proteins.
- Exhibits anticancer activity.
- Targets Bcl-2 family and Survivin.
- Involves the apoptosis pathway.
- Is a derivative of camptothecin.
Medchemexpress LLC Pepinh-MYD TFA | 1421052-89-2 | 98.9% | 3388.03 | 5 MG
Pepinh-MYD TFA is a MyD88 inhibitor designed to interfere with MyD88-mediated TLR signaling pathways. It contains a domain sequence from MyD88 TIR and a protein transduction sequence, enabling cell membrane penetration and inhibition of related immune responses. This compound shows potential for studying the role of MyD88 in viral infections, including COVID-19.
- Acts as a MyD88 inhibitor
- Contains a domain sequence from MyD88 TIR
- Includes a protein transduction sequence for cell membrane penetration
- Interferes with MyD88-mediated TLR signaling pathways
- Inhibits immune responses
- Suitable for studying the role of MyD88 in viral infections
- Applicable in COVID-19 anti-virus research
Medchemexpress LLC F9170 (TFA) | 99.7% | 1983.3 g/mol | 5 MG
F9170 (TFA) is a laboratory chemical with 99.7% purity and a molecular weight of 1983.3 g/mol. It appears as a solid and is stable under recommended storage conditions. This product is intended for research use only and should be handled by suitably qualified and experienced scientists in appropriate facilities.
- Solid appearance
- Stable under recommended storage conditions
- Store powder at -80°C for up to 2 years or -20°C for up to 1 year
- Store in solvent at -80°C for up to 6 months or -20°C for up to 1 month (sealed storage, away from moisture)
- Suitable for shipping at room temperature if less than 2 weeks
- Requires handling in areas with appropriate exhaust ventilation
- Keep container tightly sealed in a cool, well-ventilated area
- Keep away from direct sunlight and sources of ignition
Medchemexpress LLC QL47B TFA | 96.0% | 992.07 | 1 MG
QL47B TFA is a biotinylated analogue of QL47, functioning as a potent inhibitor of BTK with an IC50 value of 1.3 μM. It has demonstrated anti-tumor activity.
- Potent inhibitor of BTK (IC50 value of 1.3 μM)
- Biotinylated analogue
- Exhibits anti-tumor activity
- Available in various pack sizes
- Purity of 96.03%
Medchemexpress LLC Cn2 toxin TFA (β-mammal toxin Cn2 TFA) | 96.6% | 7588.60 (free base) | 500 UG
Cn2 toxin TFA (β-Mammal toxin Cn2 TFA) is a single-chain β-scorpion neurotoxic peptide. As the main toxin found in scorpion venom, Cn2 toxin (TFA) specifically targets mammalian voltage-gated sodium channels (VGSC) Nav1.6. It is intended for research use only.
- Single-chain β-scorpion neurotoxic peptide
- Main toxin found in scorpion venom
- Specifically targets mammalian voltage-gated sodium channels (VGSC) Nav1.6
- White to off-white solid appearance
Medchemexpress LLC Survodutide TFA | 99.4% | 4231.62 (free base) | 25 MG
Survodutide TFA is a potent and selective dual agonist targeting the glucagon receptor (GCGR) and GLP-1 receptor (GLP-1R), with EC50s of 0.52 nM and 0.33 nM respectively in CHO-K1 cells. This 29-amino-acid acylated peptide, featuring a C18 fatty acid, demonstrates significant anti-obesity efficacy by enhancing energy expenditure and reducing food intake.
- Potent, selective GCGR/GLP-1R dual agonist
- EC50s of 0.52 nM (GCGR) and 0.33 nM (GLP-1R)
- 29-amino-acid acylated peptide
- Contains a C18 fatty acid
- Demonstrates robust anti-obesity efficacy
- Increases energy expenditure and decreases food intake
- Enhanced proteolytic stability
- Extended terminal half-life