261763-03-5 3-chloro-2-fluoro-5-(trifluoromethyl)benzoyl chloride 3-chloro-2-fluoro-5-trifluoromethyl benzoic acid chloride 3-chloro-2-fluoro-5-trifluoromethyl-benzoic acid chloride 3-chloro-2-fluoro-5-trifluoromethyl-benzoyl chloride 3-chloro-2-fluoro-5-trifluoromethylbenzoyl chloride CAS 261763-03-5

Purity 97%+In StockPharmaceutical Standards
CAS No.261763-03-5
Molecular FormulaC8H2Cl2F4O
Molecular Weight261.00 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

261763-03-5
3-chloro-2-fluoro-5-(trifluoromethyl)benzoyl chloride
3-chloro-2-fluoro-5-trifluoromethyl benzoic acid chloride
3-chloro-2-fluoro-5-trifluoromethyl-benzoic acid chloride
3-chloro-2-fluoro-5-trifluoromethyl-benzoyl chloride
3-chloro-2-fluoro-5-trifluoromethylbenzoyl chloride CAS 261763-03-5 chemical structure

Description

The occurrence of 261763-03-5 3-chloro-2-fluoro-5-(trifluoromethyl)benzoyl chloride 3-chloro-2-fluoro-5-trifluoromethyl benzoic acid chloride 3-chloro-2-fluoro-5-trifluoromethyl-benzoic acid chloride 3-chloro-2-fluoro-5-trifluoromethyl-benzoyl chloride 3-chloro-2-fluoro-5-trifluoromethylbenzoyl chloride is closely related to a hydroxyl group, an ether linkage, fluorine/chlorine substitution, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

261763-03-5 3-chloro-2-fluoro-5-(trifluoromethyl)benzoyl chloride 3-chloro-2-fluoro-5-trifluoromethyl benzoic acid chloride 3-chloro-2-fluoro-5-trifluoromethyl-benzoic acid chloride 3-chloro-2-fluoro-5-trifluoromethyl-benzoyl chloride 3-chloro-2-fluoro-5-trifluoromethylbenzoyl chloride (CAS 261763-03-5) is a high-purity analytical reference standard with the molecular formula C8H2Cl2F4O and a molecular weight of 261.00 g/mol.

Based on its molecular formula C8H2Cl2F4O, 261763-03-5 3-chloro-2-fluoro-5-(trifluoromethyl)benzoyl chloride 3-chloro-2-fluoro-5-trifluoromethyl benzoic acid chloride 3-chloro-2-fluoro-5-trifluoromethyl-benzoic acid chloride 3-chloro-2-fluoro-5-trifluoromethyl-benzoyl chloride 3-chloro-2-fluoro-5-trifluoromethylbenzoyl chloride contains a hydroxyl group, an ether linkage, fluorine/chlorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 261.00 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

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), 261763-03-5 3-chloro-2-fluoro-5-(trifluoromethyl)benzoyl chloride 3-chloro-2-fluoro-5-trifluoromethyl benzoic acid chloride 3-chloro-2-fluoro-5-trifluoromethyl-benzoic acid chloride 3-chloro-2-fluoro-5-trifluoromethyl-benzoyl chloride 3-chloro-2-fluoro-5-trifluoromethylbenzoyl chloride 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 FormulaC8H2Cl2F4O
Molecular Weight261.00 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, water (slightly soluble)
StabilityMay oxidize slowly on prolonged air exposure
Degree of Unsaturation (DBE)5.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2025
Halogen ContentF/Cl-containing

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