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 OncoACP3 TFA | 3084147-81-6 | 1323.35 | 5 MG
OncoACP3 TFA | 3084147-81-6 | 1323.35 | 5 MG
Medchemexpress LLC Fn-439 TFA | 124168-73-6 | MFCD00237459 | 99.8% | 604.58 g·mol⁻¹ | C25H35F3N6O8 | 5 MG
FN-439 TFA is the trifluoroacetic acid salt of FN-439, a selective small-molecule inhibitor of collagenase-1 (matrix metalloproteinase). It inhibits collagenase-1 with an IC50 of 1 μM and is supplied as a research reagent for in vitro studies of cancer and inflammatory processes.
- Selective collagenase-1 inhibitor with reported IC50 of 1 μM.
- High purity (99.81%) suitable for biochemical assays.
- Trifluoroacetic acid salt form to aid solubility in aqueous systems.
- Supplied in research-scale quantities (e.g., five mg) for assay development.
- Intended for in vitro research applications; not for human use.
Medchemexpress LLC CL2A (TFA) | 2616704-22-2 | 99.5% | 1176.24 | C50H79N9O16 | 5 MG
CL2A (TFA) is a pH-sensitive, cleavable PEG8- and triazole-containing PABC-peptide-mc linker for use in antibody-drug conjugate construction. The TFA salt form improves handling and stability and is designed to release payloads under acidic conditions to produce a bystander effect.
- Cleavable linker enabling payload release under acidic conditions.
- PEG8 spacer and triazole moiety for increased solubility and stability.
- Designed for conjugation to antibody cysteine residues via disulfide linkage.
- Available in small research-scale packages for use in ADC development.
- Stable as a powder when stored sealed at 4°C; shipped at room temperature.
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 AT-1002 TFA | 835872-35-0 | 99.5% | 821.91 | 1 ML
AT-1002 TFA, a 6-mer synthetic peptide, is a tight junction regulator and absorption enhancer. It belongs to an emerging novel class of compounds that reversibly increase paracellular transport of molecules across the epithelial barrier.
- Can undergo Cys-Cys dimerization.
- Treatment for up to 3 hours did not affect Caco-2 cell viability at any concentration.
- Reduced cell viability after 24 hours at concentrations of 2.5 mg/mL and higher.
- Cells remained viable after 24 hours if washed after 3 hours exposure, indicating it does not irreversibly damage cells.
Medchemexpress LLC Cl2e-SN38 TFA | 99.1% | 1855.95 | C89H117F3N14O26 | 5 MG
CL2E-SN-38 TFA is an antibody-drug conjugate (ADC) drug-linker consisting of an SN-38 payload attached via a CL2E linker in the trifluoroacetate (TFA) salt form. It is intended for preclinical research into ADCs, where SN-38 functions as a topoisomerase I inhibitor.
- Highly releasable and structurally stable antibody-SN-38 conjugate.
- Contains SN-38 payload, a topoisomerase I inhibitor.
- TFA salt form for improved solubility and handling.
- Available in small research quantities (5 MG).
- High purity suitable for preclinical ADC development.
Medchemexpress LLC LP17 TFA (LQVTDSGLYRCVIYHPP TFA) | 99.2% | 1961.24 | 5 MG
LP17 (LQVTDSGLYRCVIYHPP) TFA is a BBB-penetrable triggering receptor expressed on myeloid cells (TREM-1) inhibitory peptide. It substantially alleviates ischemia-induced infarction and neuronal injury by accessing the brain and blocking TREM-1. For research use only.
- Decreases mRNA levels of pro-inflammatory cytokines and chemokines.
- Attenuates extracellular protein levels of IL-1β and IL-18 in a microglia oxygen-glucose deprivation (OGD) model.
- Interacts with microglial SYK.
- Alleviates ischemia-induced infarction and neuronal injury in mice.
- Reduces infarct volume by 27.3%.
- Reduces TUNEL positive cells and FJC positive neurons.
- Rescues neurological deficits and cognitive dysfunction.
- Inhibits microglial M1 polarization and neutrophil infiltration.
Medchemexpress LLC GsMTx4 | 1209500-46-8 | 99.9% | 4095.84 | 500 UG
GsMTx4 is a spider venom peptide that selectively inhibits cationic-permeable mechanosensitive channels (MSCs) belonging to the Piezo and TRP channel families. It also blocks cation-selective stretch-activated channels (SACs), and attenuates lysophosphatidylcholine (LPC)-induced astrocyte toxicity and microglial reactivity. GsMTx4 serves as a pharmacological tool for identifying the role of these excitatory MSCs in normal physiology and pathology.
- Selectively inhibits cationic-permeable mechanosensitive channels
- Blocks cation-selective stretch-activated channels
- Attenuates lysophosphatidylcholine-induced astrocyte toxicity and microglial reactivity
- Neuroprotective and inhibits demyelination
- Reduces mechanical allodynia induced by inflammation and sciatic nerve injury
Medchemexpress LLC GRL-1720 TFA | 2835511-03-8 | C16H12ClF3N2O4 | 5 MG
GRL-1720 TFA is a potent inhibitor of SARS-CoV-2 Mpro, exhibiting anti-SARS-CoV2 activity with an EC50 value of 15 μM. This compound has a molecular weight of 388.73 and appears as a solid, ranging from light brown to brown in color.
- High purity of 98.94%.
- Shipped at room temperature.
- Store at -20°C, sealed, away from moisture.
- In solution, stable for 6 months at -80°C or 1 month at -20°C with sealed storage, away from moisture.
Medchemexpress LLC Spexin (Neuropeptide Q) | 1370290-58-6 | 99.9% | 1619.88 | 1 MG
Spexin (Neuropeptide Q) | 1370290-58-6 | 99.9% | 1619.88 | 1 MG