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 MIP-1095 (TFA) | 99.8% | 678.35 | 25 MG
MIP-1095 TFA (RPS-001 TFA) is a potent inhibitor of PSMA, demonstrating good biodistribution and efficient targeting of tumor lesions. It is utilized as an imaging probe to identify and monitor tumor progression, particularly when isotopically labeled with 131I. This labeling results in 131I-MIP-1095 showing higher renal uptake in mice.
- Potent inhibitor of PSMA
- Good biodistribution
- Efficient targeting of tumor lesions
- Can be isotopically labeled as an imaging probe
- Higher renal uptake in mice when labeled with 131I
- Used as an imaging probe to indicate tumor progression
Medchemexpress LLC Cys-PKHB1 TFA | 65.8% | 1487.88 | 1 MG
Cys-PKHB1 (Cys-txCD47) TFA is a peptide conjugated to PKHB1, which is a CD47 agonist peptide and a thrombospondin-1 peptide mimic with antitumor effects. This peptide induces mitochondrial alterations, ROS generation, intracellular Ca+ accumulation, and calcium-dependent cell death in breast cancer cells. It also induces immune system activation in breast cancer cells through immunogenic cell death.
- Peptide conjugated to PKHB1
- Acts as a CD47 agonist
- Functions as a thrombospondin-1 peptide mimic
- Induces mitochondrial alterations
- Promotes ROS generation
- Leads to intracellular Ca+ accumulation
- Causes calcium-dependent cell death in breast cancer cells
- Induces immune system activation in breast cancer cells
Medchemexpress LLC Crotamine TFA | 98.06% | 4883.73 (free base) | 1 MG
Crotamine TFA is a Na+ channel modulator, a 42 amino acid toxin cross-linked by three disulfide bridges. It exhibits analgesic activity and interacts with lipid membranes, showing myonecrotic activity. It can be isolated from *Crotalus durissus terrificus* venom.
- Na+ channel modulator
- 42 amino acid toxin
- Cross-linked by three disulfide bridges
- Analgesic activity
- Interacts with lipid membranes, showing myonecrotic activity
Medchemexpress LLC RSM3 TFA | 98.83% | 3049.66 | 5 MG
RSM3 TFA, a stapled peptide, is a METTL3-METTL14 inhibitor with a Kd of 3.10 μM. It inhibits tumor growth and induces cell apoptosis. RSM3 TFA can be used for the study of cancer.
- Inhibits tumor growth
- Induces cell apoptosis
- Used for the study of cancer
- Stapled peptide
- METTL3-METTL14 inhibitor
Medchemexpress LLC Jbsnf-000028 tfa | C13H14F3N3O2 | 25 MG
JBSNF-000028 TFA is an orally active small molecule inhibitor of the tricyclic nicotinamide N-methyltransferase (NNMT). It reduces endogenous MNA levels in U2OS osteosarcoma cells and shows significant anti-obesity and anti-diabetic activities in the diet-induced obesity (DIO) model. This compound is suitable for research into metabolic diseases such as obesity, type 2 diabetes, and non-alcoholic fatty liver disease.
- Inhibits NNMT activity in U2OS cells with an EC50 of 2.5 μM.
- Shows no cytotoxicity against HepG2 cells at concentrations of 10-100 μM.
- Improves glucose and lipid handling in diet-induced obese mice.
- Enhances glucose tolerance in NNMT knockout mice with diet-induced obesity.
Medchemexpress LLC 5-FAM-LL-37 TFA | 95.76% | 4851.56 (free acid) | 1 MG
5-FAM-LL-37 TFA is the TFA salt form of 5-FAM-LL-37, a LL-37 peptide labeled with fluorescein. It retains the antibacterial and immunomodulatory activities of LL-37 by binding to the bacterial cell membrane, thereby destroying its integrity and demonstrating broad-spectrum antibacterial efficacy.
- Retains antibacterial and immunomodulatory activities
- Binds to bacterial cell membrane
- Demonstrates broad-spectrum antibacterial efficacy
Medchemexpress LLC G-Pen-GRGDSPCA (TFA) | 98.8% | 948.04 | 5 MG
G-Pen-GRGDSPCA (TFA) is a solid, white to off-white chemical product primarily identified for use as a laboratory chemical and in the manufacture of substances. It demonstrates stability under recommended storage conditions.
- Appearance: white to off-white solid
- Chemical stability: stable under recommended storage conditions
- Identified uses: laboratory chemicals, manufacture of substances
- Purity: 98.76% (LCMS)
- Consistent with structure (LCMS)
Medchemexpress LLC Pemvidutide (TFA) | 2538014-94-5 | 98.1% | C182H275N39O54.xC2HF3O2 | 25 MG
Pemvidutide TFA (ALT-801) is a GLP-1R/GCGR dual agonist that causes significant reductions in body weight, liver fat, and serum lipids. It is used in non-alcoholic steatohepatitis (NASH) and obesity research.
- Causes striking reductions in body weight, liver fat, and serum lipids
- Applicable for research in non-alcoholic steatohepatitis (NASH) and obesity
- Improved NASH outcomes in C57BL6/J mice
- Lowered hepatic lipids
- Lowered liver weight
- Reduced biomarkers of liver injury (plasma ALT and AST)
- Decreased the inflammation marker galactin-3
- Reduced the fibrosis marker Col1a1
- Lowered the NAS score
Medchemexpress LLC G7-18NATE TFA | 98.1% | 1417.5 | 5 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. For research use only, not sold to patients.
- 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.
- Purity: 98.1%.
Medchemexpress LLC aStAx-35R TFA | 99.1% | 2392.86 | 1 MG
aStAx-35R TFA is a stapled peptide that functions as an antagonist of the nuclear form of β-catenin, thereby inhibiting Wnt signaling. It competitively prevents the binding of β-catenin to TCF4 and selectively induces growth inhibition in Wnt-dependent cancer cells.
- Directly targets and antagonizes the nuclear form of β-catenin.
- Effectively inhibits the Wnt signaling pathway.
- Competitively inhibits the binding of β-catenin to TCF4.
- Selectively induces growth inhibition in cancer cells dependent on Wnt signaling.
Medchemexpress LLC Pgk13a TFA | 96.9% | 2004.73 (free base) | 5 MG
pGk13a TFA is an azide-containing amphiphilic membrane labeling probe. It enables high-resolution imaging of cell membranes in the ultrastructural membrane expansion microscopy (umExM) technique, facilitating the observation of membrane-associated structures and proteins. It can be used for neuronal structural studies.
- Azide-containing amphiphilic membrane labeling probe
- Enables high-resolution imaging of cell membranes
- Used in ultrastructural membrane expansion microscopy (umExM)
- Facilitates observation of membrane-associated structures and proteins
- Applicable for neuronal structural studies
Medchemexpress LLC TAM557 TFA | 98.5% | 1119.34 | 1 MG
TAM557 TFA is a cytotoxic tubulysin compound designed for conjugation to transport vehicles such as proteins, peptides, small molecules, or polymeric carriers that incorporate a targeting principle. It is intended for research use only.
- Cytotoxic tubulysin compound
- Modified for conjugation to transport vehicles
- Appearance: solid, white to off-white
- Shipping at room temperature
- Store at -20°C, sealed, away from moisture and light
- In solvent, store at -80°C for 6 months or -20°C for 1 month
Medchemexpress LLC Thymotrinan trifluoroacetate | 00-00-0 | 98.7% | 531.48 g·mol⁻¹ | C18H32F3N7O8 | 25 MG
Thymotrinan TFA is a biologically active fragment of the thymus hormone thymopoietin, provided as the trifluoroacetate (TFA) salt for research use. It modulates immune responses, affecting both humoral and cellular immunity, and is supplied as a purified synthetic peptide for laboratory studies.
- Immunomodulating peptide that affects humoral and cellular responses.
- Supplied as the trifluoroacetate salt for improved stability and handling.
- High purity suitable for in vitro and preclinical research.
- Available in small-scale quantities for peptide research workflows.
- Molecular weight 531.48 g·mol⁻¹; formula C18H32F3N7O8.
Medchemexpress LLC Tcmcb07 tfa | 1456699-27-6 | 99.69% | 1344.5 g/mol | 1 MG
TCMCB07 TFA is a cyclic nonapeptide, recognized as an orally active and brain-penetrant antagonist of the melanocortin receptor 4 (MC4R). It is noted for its important role in cachexia and exhibits potential transport capabilities.
- Cyclic nonapeptide MC4R antagonist
- Orally active and brain-penetrant
- Important for cachexia research
- Exhibits potential transport capabilities
- Known to stimulate food intake and weight gain in rats
Medchemexpress LLC Ceftolozane TFA | 1628046-32-1 | 98.2% | 780.71 | C25H31F3N12O10S2 | 5 MG
Ceftolozane TFA is the trifluoroacetic acid (TFA) salt of a cephalosporin antibiotic supplied as a solid for research use. It is used to study and inhibit Gram-negative bacterial infections and as a synthetic building block for development of new antibiotic derivatives.
- Cephalosporin-class antibiotic active against Gram-negative bacteria.
- Useful as a synthetic intermediate for antibiotic development.
- High purity (98.2%) suitable for analytical and synthetic work.
- White to off-white solid form for easy handling and storage.
- Available in milligram-scale quantities for research applications.
- Store at -20°C sealed; in solvent, store at -80°C up to 6 months or -20°C up to 1 month.
- For research use only; not for human or veterinary use.