Trifluoroacetic acid
SIGALD/T6508 - ReagentPlus®, 99%
Synonym: TFA
CAS Number: 76-05-1
Empirical Formula (Hill Notation): C2HF3O2
Molecular Weight: 114.02
EC Number: 200-929-3
MDL Number: MFCD00004169
Linear Formula: CF3COOH
Product Type: Chemical
4×100 Slip-cover Can
Photo is meant to be representative of product you will receive if ordered. Additional information is printed on actual labels and package types are subject to change.
Photo is meant to be representative of product you will receive if ordered. Additional information is printed on actual labels and package types are subject to change.
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material. This image depicts SKU: T6508-25ML
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material. This image depicts SKU: T6508-5ML
| assay | 99% |
| bp | 72.4 °C (lit.) |
| density | 1.489 g/mL at 20 °C (lit.) |
| form | liquid |
| impurities | ≤0.05% water |
| InChI | 1S/C2HF3O2/c3-2(4,5)1(6)7 |
| InChI key | DTQVDTLACAAQTR-UHFFFAOYSA |
| mp | −15.4 °C (lit.) |
| pH | 1 (10 g/L) |
| product line | ReagentPlus® |
| Quality Level | 200  |
| refractive index | n |
| SMILES string | OC(C(F)(F)F)=O |
| solubility | ethanol: soluble 0.33 mL/mL |
| vapor density | 3.9 (vs air) |
| vapor pressure | 97.5 mmHg ( 20 °C) |
| Application: | Trifluoroacetic acid can be used as a reagent: • For the cleavage of nitrogen and oxygen protecting groups such as N-Boc, N-benzyloxymethyl, benzyl ether, p-methoxybenzyl ether, t-butyl ether, t-butyloxymethyl ether, triphenylmethyl ether, and dimethyl acetals. • In the Baeyer–Villiger oxidation reactions in combination with sodium percarbonate.,· • For the C-H trifluoromethylation of arenes. TFA can also be used as: • A solvent in atom transfer cyclization reactions and polymer processes. • A catalyst in the synthesis of ε-caprolactam via Beckmann rearrangement of cyclohexanone oxime in aprotic solvents. |
| General description: | Trifluoroacetic acid (TFA) is an organofluorine compound used as a reagent in organic synthesis for various acid-catalyzed reactions such as ring-opening of epoxides, biomimetic cyclization, Cope rearrangements, and natural product synthesis. TFA′s physicochemical characteristics provide advantages over other acids because of its high volatility, solubility in organic solvents, and acidic strength. When TFA is used as a reagent the product isolation is simple by evaporation due to its very high volatility. Less volatile acids such as sulfuric acid or p-toluenesulfonic acid may require neutralization or an extractive workup. |
| Legal Information: | ReagentPlus is a registered trademark of Sigma-Aldrich Co. LLC |
| Packaging: | 1, 10, 5×10, 10×10 amp in ampule |
| Packaging: | 1, 2 L in glass bottle |
| Packaging: | 1mL in each ampule. |
| Packaging: | 5, 25, 100, 4×100, 500 mL in glass bottle |
| Symbol |   GHS05,GHS07 |
| Signal word | Danger |
| Hazard statements | H314 - H332 - H412 |
| Precautionary statements | P261 - P273 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338 |
| Hazard Codes | C |
| Risk Statements | 20-35-52/53 |
| Safety Statements | 9-26-27-28-45-61 |
| RIDADR | UN 2699 8 / PGI |
| WGK Germany | WGK 2 |
| Flash Point(F) | 212.0 °F - Pensky-Martens c |
| Flash Point(C) | > 100 °C - Pensky-Martens c |
| Purity | 99% |
| bp | 72.4 °C (lit.) |
| mp | −15.4 °C (lit.) |
| Density | 1.489 g/mL at 20 °C (lit.) |
| Refractive Index | n |
| UNSPSC | 12352106 |