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 G7-18NATE TFA | 98.1% | 1417.50 | 1 MG
G7-18NATE TFA is a peptide inhibitor of Grb7. It binds to the Grb7-SH2 domain with micromolar affinity (Kd = 18.1 μM). G7-18NATE TFA inhibits cell proliferation, motility, cell invasion, and 3D culture formation in several cancer cell lines.
- Peptide inhibitor of Grb7
- Binds to the Grb7-SH2 domain with micromolar affinity (Kd = 18.1 μM)
- Inhibits cell proliferation, motility, cell invasion, and 3D culture formation in several cancer cell lines
Medchemexpress LLC Alvespimycin trifluoroacetate | 00-00-0 | MFCD08457919 | 99.0% | 730.77 g·mol⁻¹ | C34H49F3N4O10 | 25 MG
Alvespimycin trifluoroacetate (17-DMAG TFA) is the trifluoroacetic acid salt of a semisynthetic geldanamycin derivative that potently inhibits Hsp90. It binds Hsp90 in the low-nanomolar range and is used in cellular and biochemical studies to induce heat-shock response and promote degradation of Hsp90 client proteins, supporting research into proteostasis and targeted oncology pathways.
- Potent Hsp90 inhibition with reported EC50 ≈ 62 nM.
- Promotes Her2 degradation in cancer cell lines (EC50 8 nM in SKBR3, 46 nM in SKOV3).
- Induces Hsp70 expression in cell assays (EC50 4 nM in SKBR3, 14 nM in SKOV3).
- High purity (>98.9%) suitable for in vitro studies.
- Available in small research pack sizes, including 25 MG.
Medchemexpress LLC Frakefamide TFA 25mg | 25MG
Frakefamide TFA is a potent analgesic that acts as a peripheral active -selective receptor agonist Frakefamide is unable to penetrate the blood-brain-barrier and enter the central nervous system[1 [2
Medchemexpress LLC L-Phenylalaninamide, 4-(methylsulfonyl)-L-2-aminobutanoyl-L-α-glutamyl-L-histidyl-L-phenylalanyl-D-lysyl-N-(8-aminooctyl)- (TFA) | 99.0% | 996.23 (free base) | 25 MG
Ebiratide (HOE-427) TFA is an ACTH 4-9 derivative that acts directly on the central nervous system and exhibits memory-enhancing efficacy. It enhances acetycholine (ACh) metabolism in rat brain.
- ACTH 4-9 derivative
- Acts directly on the central nervous system
- Exhibits memory-enhancing efficacy
- Enhances acetylcholine (ACh) metabolism in rat brain
- Exhibits neuroprotective efficacy in electroconvulsive shock
- Exhibits anti-amnestic efficacy in Scopolamine (HY-N0296)-induced memory impairment in mice model
Medchemexpress LLC QTX125 trifluoroacetate | 2989537-78-0 | 99.9% | 100 MG
QTX125 TFA is the trifluoroacetate salt of QTX125, a potent and highly selective histone deacetylase 6 (HDAC6) inhibitor with reported antitumor activity. Supplied as an off-white to gray solid for research use, it is available in multiple pack sizes and should be stored sealed and protected from moisture.
- Potent and selective HDAC6 inhibitor
- High reported purity and chemical stability
- Provided as a trifluoroacetate salt for improved handling
- Suitable for in vitro and preclinical research applications
- Store sealed, away from moisture; follow cold storage recommendations
Medchemexpress LLC WD6305 TFA | 99.8% | 1226.40 | 1 MG
WD6305 TFA is a potent and selective METTL3-METTL14 PROTAC degrader. It has DC50 values of 140 nM and 194 nM for METTL3 and METTL14, respectively. WD6305 TFA inhibits m6A modification and proliferation of AML cells, and induces apoptosis. It also exhibits antitumor activity.
- Potent and selective PROTAC degrader.
- Inhibits m6A modification and proliferation of AML cells.
- Induces apoptosis.
- Has antitumor activity.
- For research use only.
Medchemexpress LLC D-phenylalanyl-prolyl-arginyl chloromethyl ketone trifluoroacetate | 157379-44-7 | 99.8% | 1 ML
PPACK TFA is a potent, selective, irreversible thrombin inhibitor supplied as a 10 mM solution in DMSO (1 mL). It is used as an anticoagulant and a biochemical tool to inhibit thrombin activity in blood-sample handling and enzymatic assays.
- Potent, selective, irreversible thrombin inhibitor.
- Supplied as a 10 mM solution in DMSO, 1 mL.
- High purity for reproducible experimental results.
- Molecular weight 564.99 g/mol; CAS 157379-44-7.
- Store sealed and away from moisture; follow storage instructions for solution and powder.
Medchemexpress LLC Ql9 tfa | 95.91% | 5 MG
QL9 (QLSPFPFDL) TFA is a high-affinity alloantigen for the 2C T cell receptor (TCR), intended for research use only.
- High-affinity alloantigen
- Specific for the 2C T cell receptor (TCR)
- Suitable for research applications
Medchemexpress LLC LL-37, human TFA | 154947-66-7 | 100.0% | 4493.26 | 5 MG
LL-37, human TFA is a 37-residue, amphipathic, cathelicidin-derived antimicrobial peptide. It demonstrates a broad spectrum of antimicrobial activity.
- Exhibits broad-spectrum antimicrobial activity.
- May help protect the cornea from infection.
- Modulates wound healing.
Medchemexpress LLC Ribupatide (TFA) | 2940971-65-1 | 98.74% | 4907.48 | 5 MG
Ribupatide (TFA) is a dual gastric inhibitory polypeptide (GIP) and glucagon-like peptide 1 (GLP-1) receptor agonist. This compound is used in antidiabetic research and is for research use only. It is orally active and can also be administered by injection.
- Dual GIP and GLP-1 receptor agonist
- Orally active
- Can be administered by injection
- Suitable for antidiabetic research
Medchemexpress LLC Gsnkskpk-nh2 (TFA) | 99.9% | 843.97 (free base) | 5 MG
GSNKSKPK-NH2 TFA is a model peptide based on a c-Src N-terminal peptide, which serves as an NMT substrate.
- Purity: 99.9%
- Appearance: White to off-white solid
- Sequence: Gly-Ser-Asn-Lys-Ser-Lys-Pro-Lys-NH2
- Molecular formula: C35H65N13O11.xC2HF3O2
- Soluble in water and DMSO
Medchemexpress LLC Ebiratide TFA | 99.0% | 996.23 | 5 MG
Ebiratide TFA (HOE-427) is an ACTH 4-9 derivative that acts directly on the central nervous system and shows memory-enhancing effects. It increases acetylcholine (ACh) metabolism in the rat brain. Ebiratide TFA has neuroprotective efficacy in mice models with electroconvulsive shock and Scopolamine-induced memory impairment, demonstrating anti-amnestic efficacy.
- ACTH 4-9 derivative.
- Acts directly on the central nervous system.
- Exhibits memory-enhancing efficacy.
- Enhances acetylcholine (ACh) metabolism in rat brain.
- Exhibits neuroprotective and anti-amnestic efficacy in animal models.
Medchemexpress LLC Z-VRPR-FMK TFA | 1926163-57-6 | MFCD18782585 | 95.9% | 790.81 | 1 MG
Z-VRPR-FMK (TFA) (VRPR) is a tetrapeptide and a selective and irreversible MALT1 (Mucosa-associated lymphoid tissue lymphoma translocation protein 1) inhibitor. It can protect against influenza A virus (IAV) infection.
- Tetrapeptide
- Selective and irreversible MALT1 inhibitor
- Protects against influenza A virus (IAV) infection
Cambridge Isotope Laboratories Trifluoroacetic acid-D (D 99 5%) 10 x 0 5mL
Trifluoroacetic acid-D (D 99 5%) 10 x 0 5mL
Medchemexpress LLC Ω-Agatoxin IVA TFA | 99.10% | 5316.27 | 500 UG
ω-Agatoxin IVA TFA is a potent, selective P/Q type Ca2+ (Cav2.1) channel blocker with IC50s of 2 nM and 90 nM for P-type and Q-type Ca2+ channels, respectively. It inhibits glutamate exocytosis and calcium influx elicited by high potassium (IC50, 30-225 nM) and also blocks the high potassium-induced release of serotonin and norepinephrine. ω-Agatoxin IVA TFA has no effect on L-type or N-type calcium channels.
- Potent, selective P/Q type Ca2+ (Cav2.1) channel blocker
- Inhibits glutamate exocytosis and calcium influx
- Blocks release of serotonin and norepinephrine
- No effect on L-type or N-type calcium channels
- Appearance: Solid
- Color: White to off-white
- For research use only