1,2,4-trichloro-3-fluoro-5-methylbenzene 1,2,4-tris(chloranyl)-3-fluoranyl-5-methyl-benzene 401-77-4 A824959 CAS 401-77-4

Purity 97%+In StockPharmaceutical Standards
CAS No.401-77-4
Molecular FormulaC7H4Cl3F
Molecular Weight213.46 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

1,2,4-trichloro-3-fluoro-5-methylbenzene 1,2,4-tris(chloranyl)-3-fluoranyl-5-methyl-benzene 401-77-4 A824959 CAS 401-77-4 chemical structure

Description

As a certified reference material (CRM), 1,2,4-trichloro-3-fluoro-5-methylbenzene 1,2,4-tris(chloranyl)-3-fluoranyl-5-methyl-benzene 401-77-4 A824959 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.

1,2,4-trichloro-3-fluoro-5-methylbenzene 1,2,4-tris(chloranyl)-3-fluoranyl-5-methyl-benzene 401-77-4 A824959 (CAS 401-77-4), molecular formula C7H4Cl3F and molecular weight 213.46 g/mol, is a CATO reference standard with documented purity and traceability.

Based on its molecular formula C7H4Cl3F, 1,2,4-trichloro-3-fluoro-5-methylbenzene 1,2,4-tris(chloranyl)-3-fluoranyl-5-methyl-benzene 401-77-4 A824959 contains fluorine/chlorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 213.46 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.

Physical & Chemical Properties

Molecular FormulaC7H4Cl3F
Molecular Weight213.46 g/mol
AppearanceOff-white to pale yellow crystalline powder. (slight halide-like odor, low volatility)
Purity97%+
StorageStore at room temperature, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in methanol, acetonitrile, DMSO
StabilityMay oxidize slowly on prolonged air exposure
Degree of Unsaturation (DBE)4.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1957
Halogen ContentF/Cl-containing

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