4-Chloro-2-trifluoroacetyl-6-methoxyaniline CAS 205756-22-5

Purity 97%+In StockPharmaceutical Standards
CAS No.205756-22-5
Molecular FormulaC9H7ClF3NO2
Molecular Weight253.61 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4-Chloro-2-trifluoroacetyl-6-methoxyaniline CAS 205756-22-5 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 253.61 g/mol gives 4-Chloro-2-trifluoroacetyl-6-methoxyaniline distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

4-Chloro-2-trifluoroacetyl-6-methoxyaniline (CAS 205756-22-5), molecular formula C9H7ClF3NO2 and molecular weight 253.61 g/mol, is a CATO reference standard with documented purity and traceability.

Based on its molecular formula C9H7ClF3NO2, 4-Chloro-2-trifluoroacetyl-6-methoxyaniline contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 253.61 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.

As a certified reference material (CRM), 4-Chloro-2-trifluoroacetyl-6-methoxyaniline meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

Physical & Chemical Properties

Molecular FormulaC9H7ClF3NO2
Molecular Weight253.61 g/mol
AppearanceOff-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility)
Purity97%+
StorageStore at 2-8°C, protect from light, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)5.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2015
Halogen ContentF/Cl-containing
Nitrogen Atoms1

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