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 Calcitonin, eel TFA | 99.9% | 3528.89 | 5 MG
Calcitonin, eel TFA is a thyroid hormone peptide that plays a role in regulating calcium homeostasis. It is frequently used in research concerning postmenopausal osteoporosis. In vitro studies show that Calcitonin, eel stimulates phosphoinositide hydrolysis and prolactin release in cultured anterior pituitary cells more effectively than salmon calcitonin. However, it does not inhibit prolactin release under conditions stimulated by thyrotropin releasing hormone (TRH).
- Contributes to the regulation of calcium homeostasis.
- Widely used in postmenopausal osteoporosis research.
- Effectively induces a concentration-dependent stimulation of phosphoinositide hydrolysis in vitro.
- Stimulates prolactin release in cultured anterior pituitary cells in vitro.
- High purity of 99.91%.
Medchemexpress LLC CCZ01048 TFA | 98.5% | 1622.75 | 5 MG
CCZ01048 TFA is an α-MSH analogue that exhibits high binding affinity to melanocortin 1 receptor (MC1R) with a Ki of 0.31 nM. It shows rapid internalization into B16F10 melanoma cells and demonstrates high in vivo stability, making it a promising candidate for PET imaging of malignant melanoma.
- α-MSH analogue
- High binding affinity to melanocortin 1 receptor (MC1R) with a Ki of 0.31 nM
- Rapid internalization into B16F10 melanoma cells
- High in vivo stability
- Promising candidate for PET imaging of malignant melanoma
Medchemexpress LLC Api137 TFA | 1428789-03-0 | 2291.71 | 1 MG
Api137 is an antimicrobial peptide designed to interfere with bacterial growth by inhibiting translation. It achieves this by trapping release factors on the 70S ribosome after the nascent polypeptide chain has been hydrolyzed, thereby preventing protein synthesis.
- Antimicrobial activity: effectively interferes with bacterial growth
- Translation inhibition: specific action on protein synthesis by targeting ribosomal release factors
- Research use only: intended for research purposes
- TFA form availability: available in a TFA (trifluoroacetate) form
Medchemexpress LLC PKA RII peptide TFA | 99.7% | 2226.37 | 10 MG
PKA RII peptide TFA is a PKA substrate that, after being phosphorylated at the serine residue, can be used for the detection of calcineurin activity. It is for research use only.
- Solid appearance, white to off-white color.
- Sequence: Asp-Leu-Asp-Val-Pro-Ile-Pro-Gly-Arg-Phe-Asp-Arg-R-Val-Ser-Val-Ala-Ala-Glu.
- Sequence shortening: DLDVPIPGRFDRRVSVAAE.
- Store as powder at -80°C for 2 years or -20°C for 1 year.
- Store in solvent at -80°C for 6 months or -20°C for 1 month (sealed storage, away from moisture).
- Soluble in H2O at 25 mg/mL (11.23 mM, requires ultrasonic).
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 SAR441255 (TFA) | 99.9% | 4866.56 | 25 MG
SAR441255 TFA is a potent unimolecular peptide GLP-1/GIP/GCG receptor triagonist. It displays high potency with balanced activation of all three target receptors and shows positive acute glucoregulatory effects in diabetic obese monkeys.
- Potent unimolecular peptide GLP-1/GIP/GCG receptor triagonist.
- Displays high potency with balanced activation of all three target receptors.
- Shows positive acute glucoregulatory effects in diabetic obese monkeys.
Medchemexpress LLC Veldoreotide TFA | 2126831-23-8 | 99.0% | 1237.33 | 1 MG
Veldoreotide (DG3173) TFA is a somatostatin analogue that binds to and activates somatostatin receptors (SSTR) 2, 4, and 5. It inhibits growth hormone (GH) secretion in adenomas and shows potential as a pain modulating agent. This product is for research use only.
- Binds to and activates SSTR 2, 4, and 5
- Inhibits growth hormone (GH) secretion
- Potential pain modulating agent
- Purity: 98.97%
- Appearance: White to off-white solid
- Soluble in H2O at 25 mg/mL (requires ultrasonic)
Medchemexpress LLC NN1177 (TFA) | 98.7% | 4570.07 (free base) | 25 MG
NN1177 TFA is a long-acting GLP-1/glucagon receptor co-agonist. It induces dose-dependent body weight loss in diet-induced obese mice. This product is for research use only.
- Long-acting GLP-1/glucagon receptor co-agonist
- Induces dose-dependent body weight loss in diet-induced obese mice
- Reduces CYP3A4 mRNA expression and activity in human hepatocytes
- Improves glucose tolerance in diet-induced obese mice
- Reduces liver fat and inflammatory biomarkers in NASH model mice
Medchemexpress LLC YKL-5-124 trifluoroacetate | 2748220-93-9 | 99.7% | 629.63 | C30H34F3N7O5 | 10 MM x 1 ML
YKL-5-124 TFA is the trifluoroacetate salt of a potent, selective, irreversible, covalent cyclin-dependent kinase 7 (CDK7) inhibitor. Supplied as a 10 mM solution in DMSO (1 mL), it is intended for research use in biochemical and cellular assays and is reported to induce cell-cycle arrest and inhibit E2F-driven gene expression while minimally affecting RNA polymerase II phosphorylation.
- Potent, selective CDK7 inhibition
- Irreversible covalent mechanism of action
- Supplied as a 10 mM solution in DMSO, 1 mL vial
- High purity suitable for biochemical and cellular studies
- Molecular formula and mass provided for identification
![eMolecules 1810069-99-8 | bis(2,2,2-trifluoroacetic acid);2-(2,2,2-trifluoroethyl)-2,6-diazaspiro[3.3]heptane | MFCD29037458 | 1g](https://assets.fishersci.com/TFS-Assets/CCG/product-images/502158414.JPG-250.jpg)
eMolecules 1810069-99-8 | bis(2,2,2-trifluoroacetic acid);2-(2,2,2-trifluoroethyl)-2,6-diazaspiro[3.3]heptane | MFCD29037458 | 1g
Medchem Express | Azosemide | 10mg | 495799592 | HY-107321 | 27589-33-9 | MFCD00867321 | 370.830 | C12H11ClN6O2S2
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Medchemexpress LLC Ac-VDVAD-CHO (TFA) | 00-00-0 | 99.2% | 657.59 g·mol⁻¹ | C25H38F3N5O12 | 5 MG
Ac-VDVAD-CHO (TFA) is a peptide aldehyde inhibitor used in biochemical and cell-based research to block caspase-mediated proteolysis and investigate apoptosis pathways.
- Selective caspase-2 and caspase-3 inhibition (IC50 46 nM and 15 nM).
- TFA salt, supplied as a white to off-white solid.
- High purity (99.2%).
- Molecular weight 657.59 g·mol⁻¹; formula C25H38F3N5O12.
- Recommended storage: powder at -80°C (2 years) or -20°C (1 year).
- For research use only; not for human or clinical use.
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 L2P4 TFA | 98.3% | 1961.83 (free base) | 5 MG
L2P4 TFA is a peptide-based and EBNA1 targeting fluorescent probe. It inhibits EBNA1 homodimer formation and selectively inhibits EBV+ tumor growth. L2P4 TFA exhibits cytotoxicity in EBV-positive C666-1 cells with an LC50 of 46.4 μM.
- Peptide-based probe
- EBNA1 targeting
- Inhibits EBNA1 homodimer formation
- Selectively inhibits EBV+ tumor growth
- Exhibits cytotoxicity in EBV-positive C666-1 cells
- Suitable for cancer targeted therapy and immunotherapy research
- Used in peptide-drug conjugates research
Medchemexpress LLC Thymocartin TFA 5mg | 5MG
Thymocartin TFA is the TFA salt form of Thymocartin (HY-105025) Thymocartin TFA inhibits apoptosis of peripheral blood lymphocytes in HIV infected individuals Thymocartin TFA is potential for immunodeficiency diseases research[1 [2
Medchemexpress LLC Dendrotoxin-I TFA | 99.9% | 7149.24 | 500 UG
Dendrotoxin-I TFA is a potent K+ channel blocker effective against voltage-gated potassium channel subunits KV1.1, KV1.2, and KV1.6, with IC50s ranging from 0.13-50 nM. This neurotoxin holds potential in cancer research, as demonstrated by its significant tumor growth inhibition effect when combined with hyperthermia in nude mice with MCF-7 cells.
- Potent K+ channel blocker
- Effective against voltage-gated potassium channel subunits KV1.1, KV1.2, and KV1.6
- Exhibits neurotoxic properties
- Potential for use in cancer research
- Demonstrated tumor growth inhibition in in vivo studies