91228

Trichloroacetic acid

BioUltra, ≥99.5% (T)

• Sinónimos: TCA
• Fórmula lineal: Cl₃CCOOH
• Número de CAS: 76-03-9
• Peso molecular: 163.39
• Beilstein/REAXYS Number: 970119
• EC Number: 200-927-2
• MDL number: MFCD00004177
• UNSPSC Code: 12352101
• PubChem Substance ID: 57653428
• NACRES: NA.25

Propiedades

• vapor density: <1 (vs air)
• vapor pressure: 1 mmHg ( 51 °C)
• product line: BioUltra
• assay: ≥99.5% (T)
• form: crystals; flakes
• impurities: insoluble matter, passes filter test
• ign. residue: ≤0.05%
• refractive index: n20/D 1.62 (lit.)
• pH: <1.0 (25 °C, 0.5 M in H₂O)
• bp: 196 °C (lit.)
• mp: 54-58 °C (lit.)
• solubility: H₂O: 0.5 M at 20 °C, clear, colorless
• density: 1.62 g/mL at 25 °C (lit.)
• anion traces: chloride (Cl^-): ≤30 mg/kg; nitrate (NO₃^-): ≤20 mg/kg; phosphate (PO₄^3-): ≤10 mg/kg; sulfate (SO₄^2-): ≤100 mg/kg
• cation traces: Al: ≤5 mg/kg; As: ≤0.1 mg/kg; Ba: ≤5 mg/kg; Bi: ≤5 mg/kg; Ca: ≤10 mg/kg; Cd: ≤5 mg/kg; Co: ≤5 mg/kg; Cr: ≤5 mg/kg; Cu: ≤5 mg/kg; Fe: ≤5 mg/kg; K: ≤50 mg/kg; Li: ≤5 mg/kg; Mg: ≤5 mg/kg; Mn: ≤5 mg/kg; Mo: ≤5 mg/kg; Na: ≤50 mg/kg; Ni: ≤5 mg/kg; Pb: ≤5 mg/kg; Sr: ≤5 mg/kg; Zn: ≤5 mg/kg
• SMILES string: OC(=O)C(Cl)(Cl)Cl
• λ: 0.5 M in H₂O
• UV absorption: λ: 260 nm A_max: 1.60; λ: 280 nm A_max: 0.15
• InChI: 1S/C2HCl3O2/c3-2(4,5)1(6)7/h(H,6,7)
• InChI key: YNJBWRMUSHSURL-UHFFFAOYSA-N

Descripción

General description

Trichloroacetic acid (TCA) is derived from Trichloroethylene (TCE) metabolism. It is used as an acid decalcifying agent. TCA is used as a fixative for nuclear staining and protein precipitation.

Application

Trichloroacetic acid (TCA) has been used:

• to determine its effect on avian embryos during an exposure window encompassing cardiac specification
• as a cell fixative
• to terminate the O-acetylserine (thiol)lyase (OASTL) enzymatic assay
• for the precipitation of acidic ribosomal proteins (RPs)

Tradicionalmente usado para precipitar proteínas. Se ha utilizado para determinar la concentración de proteína por gravimetría. Usado como descalcificador y fijador en microscopía.

Other Notes

Concentration of protein by quantitative precipitation; Cytochemical demonstration of DNA with a thiazine dye

Información de seguridad

• pictograms: GHS05,GHS09
• signalword: Danger
• hcodes: H314,H410
• pcodes: P260 - P273 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338
• Hazard Classifications: Aquatic Acute 1 - Aquatic Chronic 1 - Eye Dam. 1 - Skin Corr. 1A
• Storage Class: 8B - Non-combustible corrosive hazardous materials
• wgk_germany: WGK 2
• flash_point_f: >235.4 °F - closed cup
• flash_point_c: > 113 °C - closed cup
• ppe: Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges