367710

Trichloroacetic anhydride

technical grade, 95%

• Synonym(s): (2,2,2-Trichloroacetyl) 2,2,2-trichloroacetate, Trichloroacetic acid anhydride
• Linear Formula: (Cl₃CCO)₂O
• CAS Number: 4124-31-6
• Molecular Weight: 308.76
• Beilstein: 980355
• EC Number: 223-925-3
• MDL number: MFCD00000793
• UNSPSC Code: 12352100
• PubChem Substance ID: 24862827
• NACRES: NA.22

Properties

• grade: technical grade
• Quality Level: 100
• Assay: 95%
• form: liquid
• refractive index: n20/D 1.484 (lit.)
• bp: 139-141 °C/60 mmHg (lit.)
• density: 1.69 g/mL at 25 °C (lit.)
• functional group: anhydride; chloro; ester
• SMILES string: ClC(Cl)(Cl)C(=O)OC(=O)C(Cl)(Cl)Cl
• InChI: 1S/C4Cl6O3/c5-3(6,7)1(11)13-2(12)4(8,9)10
• InChI key: MEFKFJOEVLUFAY-UHFFFAOYSA-N

Description

General description

Trichloroacetic anhydride is reported to be an efficient derivatization reagent, since it produces stable derivatives having both a higher mass fragmentation pattern and lesser volatility than derivatives of trifluoroacetic anhydride (TFAA) or heptafluorobutyric anhydride (HFBA). The interaction of thymidine 5′-phosphate with trichloroacetic anhydride in dimethylformamide and acetonitrile in the presence of tertiary amines hs been studied.

Application

Trichloroacetic anhydride may be used as derivatization reagent for the following studies:

• Simultaneous analysis of amphetamine, methamphetamine and 3,4-methylenedioxymethamphetamine (MDMA or Ecstasy) in urine samples by solid-phase extraction, derivatization and gas chromatography/mass spectrometry.
• Analysis of halogenated amphetamines in brain tissue from rats by gas chromatography with electron-capture detection (GC-ECD).
• Quantitative determination of the metabolites of l-alpha-acetylmethadol (LAAM), such as noracetylmethadol, dinoracetylmethadol, methadol and normethadol by electron capture gas-liquid chromatography.

Safety Information

• Pictograms: GHS05,GHS07
• Signal Word: Danger
• Hazard Statements: H302,H314
• Precautionary Statements: P280 - P301 + P312 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338 - P363
• Hazard Classifications: Acute Tox. 4 Oral - Skin Corr. 1A
• Storage Class Code: 8A - Combustible corrosive hazardous materials
• WGK: WGK 3
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves