Trichloroacetic acid
SIGMA/T8657 - suitable for electrophoresis, suitable for fixing solution (for IEF and PAGE gels), ≥99%
Synonym: TCA
CAS Number: 76-03-9
Empirical Formula (Hill Notation): C2HCl3O2
Molecular Weight: 163.39
EC Number: 200-927-2
MDL Number: MFCD00004177
Linear Formula: Cl3CCOOH
Product Type: Chemical
| anion traces | chloride (Cl-): ≤0.001% |
| nitrate (NO3-): ≤0.002% | |
| phosphate (PO43-): ≤5 ppm | |
| sulfate (SO42-): ≤0.02% | |
| application(s) | cell analysis |
| assay | ≥99% |
| bp | 196 °C (lit.) |
| cation traces | Fe: ≤0.0005% |
| heavy metals (as Pb): ≤0.002% | |
| density | 1.62 g/mL at 25 °C (lit.) |
| form | powder or flakes (or crystals) |
| grade | electrophoresis grade |
| InChI | 1S/C2HCl3O2/c3-2(4,5)1(6) |
| InChI key | YNJBWRMUSHSURL-UHFFFAOYSA |
| mp | 54-58 °C (lit.) |
| Quality Level | 200 ![]() |
| refractive index | n |
| SMILES string | OC(=O)C(Cl)(Cl)Cl |
| solubility | water: 1 g/mL, clear, colorless |
| storage temp. | 2-8°C |
| suitability | suitable for fixing solution (for IEF and PAGE gels) |
| technique(s) | electrophoresis: suitable |
| turbidity | ≤3 NTU (1 g/ml) |
| vapor density | <1 (vs air) |
| vapor pressure | 1 mmHg ( 51 °C) |
| Application: | Traditionally used to precipitate protein. Has been used to determine protein concentration by quantitative precipitation. Used as decalcifier and fixative in microscopy. |
| Application: | Trichloroacetic acid has been used: • for hydrolysis of DNA isolated from the cell • for precipitation of glutathione isolated from seminal plasma • as a fixative in microscopy |
| General description: | Trichloroacetic acid (TCA) is produced during the chlorination of water comprising natural organic material. It is a novel reagent used in clinical laboratories for deproteinization of body fluids. In addition, TCA is also used in the treatment of genital warts and acne scars. |
| Packaging: | 1 kg in glass bottle |
| Packaging: | 250, 500 g in glass bottle |
| Symbol | ![]() ![]() GHS05,GHS07,GHS09 |
| Signal word | Danger |
| Hazard statements | H314 - H335 - H410 |
| Precautionary statements | P260 - P271 - P273 - P280 - P303 + P361 + P353 - P305 + P351 + P338 |
| Hazard Codes | C,N |
| Risk Statements | 35-50/53 |
| Safety Statements | 26-36/37/39-45-60-61 |
| RIDADR | UN 1839 8 / PGII |
| WGK Germany | WGK 2 |
| Flash Point(F) | > 235.4 °F - closed cup |
| Flash Point(C) | > 113 °C - closed cup |
| Purity | ≥99% |
| bp | 196 °C (lit.) |
| mp | 54-58 °C (lit.) |
| Density | 1.62 g/mL at 25 °C (lit.) |
| Refractive Index | n |
| Storage Temp. | 2-8°C |
| UNSPSC | 41105319 |




