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.
Apexbio Technology LLC 5-hme-CTP 10x100ul (100 mM)
5-hme-CTP (5-hydroxymethylcytidine triphosphate) is a modified cytidine triphosphate bearing a hydroxymethyl group at the 5-position carbon This modification can enhance RNA stability and functionality During in vitro mRNA synthesis 5-hme-CTP can be incorporated into RNA molecules producing RNA containing 5-hydroxymethylcytidine Hydroxymethyl-modified RNA plays an essential role in studying RNA structure function and RNA-protein interactions Additionally 5-hme-CTP significantly improves RNA stability by reducing its intracellular degradation Thus this modified nucleotide has broad applications in gene expression research RNA-based drug development and gene therapy
SIGMA ALDRICH FINE CHEMICALS BIOSCIENCES LC-MS TRIFLUOROACETIC ACID50ML
NC2952351 LC-MS TRIFLUOROACETIC ACID50ML
Medchemexpress LLC Ppack TFA | 157379-44-7 | 99.8% | 5 MG
PPACK TFA is a potent, selective, and irreversible thrombin inhibitor supplied as the trifluoroacetate (TFA) salt. It is used as an anticoagulant alternative for blood gas and whole-blood electrolyte analyses and inhibits plasminogen activator (rt-PA) binding to plasma protease inhibitors.
- Irreversible thrombin inhibitor for anticoagulant applications.
- Supplied as the trifluoroacetate salt for stability and handling.
- High analytical purity (99.8%).
- Suitable for blood gas and whole-blood electrolyte analyses.
- Available in a 5 mg research-size vial.
- CAS number: 157379-44-7.
Medchemexpress LLC Clovibactin TFA | 97.1% | 903.08 | 1 MG
Clovibactin TFA is the TFA salt form of Clovibactin (HY-P10027), serving as an antibiotic for drug-resistant bacterial pathogens without detectable resistance. It functions by inhibiting cell wall synthesis, specifically targeting pyrophosphate of peptidoglycan precursors.
- Effective against drug-resistant bacterial pathogens.
- No detectable resistance observed.
- Inhibits cell wall synthesis through a specific mechanism targeting peptidoglycan precursors.
- Demonstrates inhibition of Staphylococcus strains with MICs ranging from 0.125-2 μg/mL in vitro.
- Exhibits a characterized pharmacokinetic profile in mice, including a Cmax of 219.3 μg/mL and a t1/2 of 2 hours following a 20 mg/kg intravenous single dose.
Medchemexpress LLC MS9427 TFA | 98.4% | 1107.50 | 5 MG
MS9427 TFA is a potent PROTAC EGFR degrader that selectively targets and degrades mutant EGFR through both the ubiquitin/proteasome system (UPS) and autophagy/lysosome pathways. This compound effectively inhibits the proliferation of NSCLC cells and shows antiproliferative activity against HCC-827 cells.
- Potent PROTAC EGFR degrader
- Selectively degrades mutant EGFR
- Utilizes ubiquitin/proteoteasome system and autophagy/lysosome pathways
- Inhibits proliferation of non-small cell lung cancer (NSCLC) cells
- Exhibits antiproliferative activity against HCC-827 cells
- Induces EGFRDel19 degradation
Medchemexpress LLC BRP TFA (BRINP2-related peptide) TFA | 1540.88 (free base) | 5 MG
BRP (BRINP2-related peptide) TFA is a peptide that exhibits anti-obesity activity by activating FOS. It functions independently of leptin, GLP-1 receptor, and melanocortin 4 receptor.
- Exhibits anti-obesity activity
- Activates FOS in the central nervous system
- Functions independently of leptin, GLP-1 receptor, and melanocortin 4 receptor
- Classified as a peptide and therapeutic peptide
- Related to metabolic disease research
- Acts as an AP-1 activator
Medchemexpress LLC c-Myc Peptide TFA | 2918768-02-0 | 99.97% | 1317.32 | 5 MG
c-Myc Peptide TFA is a synthetic peptide that corresponds to the C-terminal amino acids (410-419) of human c-myc protein. It is involved in the regulation of growth-related gene transcription.
- Synthetic peptide corresponding to C-terminal amino acids (410-419) of human c-myc protein.
- Regulates growth-related gene transcription.
- Plays a critical role in the growth of breast cancer cells in vitro.
Medchemexpress LLC Clovibactin TFA | 97.1% | 903.08 (free base) | 500 UG
Clovibactin TFA is the TFA salt form of Clovibactin. It acts as an antibiotic against drug-resistant bacterial pathogens without detectable resistance, functioning by inhibiting cell wall synthesis, specifically targeting pyrophosphate of peptidoglycan precursors.
- Inhibits cell wall synthesis.
- Targets pyrophosphate of peptidoglycan precursors.
- Effective against Staphylococcus strains with MICs of 0.125-2 μg/mL.
- For research use only.
- Molecular weight: 903.08 (free base).
- Formula: C43H70N10O11.xC2HF3O2.
- Appearance: Solid, white to off-white.
- Solubility: DMSO: 100 mg/mL (Need ultrasonic).
Medchemexpress LLC Tat-NR2B9c TFA | 1834571-04-8 | 99.7% | 2632.90 | 25 MG
Tat-NR2B9c TFA is a potent inhibitor of postsynaptic density-95 (PSD-95). It selectively disrupts the interaction between PSD-95 and NMDAR, inhibiting the binding of NR2A and NR2B to PSD-95. This compound also inhibits the interaction between neuronal nitric oxide synthase (nNOS) and PSD-95, demonstrating significant neuroprotective efficacy.
- Potent PSD-95 inhibitor with high affinity for PSD-95d2 (EC50 6.7 nM)
- Inhibits NMDAR2A, NMDAR2B, and NMDAR2C binding to PSD-95
- Blocks interaction between PSD-95 and nNOS
- Reduces infarction volume in vivo
Medchemexpress LLC GRGDSP TFA | 98.0% | 701.61 | 25 MG
GRGDSP (TFA) is an integrin inhibitor. This synthetic linear RGD peptide can inhibit the adherence of tumor cells to endothelial cells of blood vessels, thereby limiting metastasis. It is also utilized to modify the surface of cardiovascular implants, such as vascular grafts, to promote endothelialization, and is widely employed in integrin research as a soluble integrin-blocking RGD-based peptide.
- Inhibits adherence of tumor cells to endothelial cells of blood vessels
- Limits metastasis
- Promotes endothelialization for cardiovascular implants
- Used in integrin research
- Functions as a soluble integrin-blocking RGD-based peptide
Medchemexpress LLC CH-0793076 TFA (TP3076 TFA) | 2740278-76-4 | 98.7% | 572.53 g·mol⁻¹ | C28H27F3N4O6 | 5 MG
CH-0793076 TFA is a camptothecin-like hexacyclic analog and the active metabolite of TP300 that functions as a DNA topoisomerase I inhibitor. It is supplied as a trifluoroacetate salt for research use and has demonstrated antiproliferative activity, including activity against cells expressing BCRP.
- Inhibits DNA topoisomerase I (reported IC50 ≈ 2.3 μM).
- Active metabolite of TP300.
- Demonstrates antiproliferative activity in cellular assays.
- Provided as a trifluoroacetate salt suitable for biochemical studies.
- Molecular weight 572.53 g·mol⁻¹; chemical formula C28H27F3N4O6.
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 Colivelin TFA | 2803948-60-7 | 99.8% | 2759.12 | 5 MG
Colivelin TFA is a brain-penetrant neuroprotective peptide and a potent activator of STAT3. It suppresses neuronal death in vitro and offers long-term benefits against neurotoxicity, Aβ deposition, neuronal apoptosis, and synaptic plasticity deficits in neurodegenerative disease. It has potential for treating Alzheimer's disease and ischemic brain injury.
- Suppresses neuronal death and activates neuroprotection through Ca2+/calmodulin-dependent protein kinase IV and STAT3 pathways.
- Reverses caspase3, Bax, and Bcl-2 expressions.
- Increases p-STAT3 protein levels.
- Suppresses spatial working memory impairment and antagonizes hippocampal neuronal loss.
- Improves motor/cognitive function and reduces lesion volume/neurological deficits post-MCAO.
- Protects against cholinotoxin-induced amnesia and ischemic brain injury.