1-[2-chloro-5-(trifluoromethyl)phenyl]-2,5-dihydro-1H-pyrrole-2,5-dione CAS 34520-60-0

Purity 97%+In StockPharmaceutical Standards
CAS No.34520-60-0
Molecular FormulaC11H5ClF3NO2
Molecular Weight275.61 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

1-[2-chloro-5-(trifluoromethyl)phenyl]-2,5-dihydro-1H-pyrrole-2,5-dione CAS 34520-60-0 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 275.61 g/mol gives 1-[2-chloro-5-(trifluoromethyl)phenyl]-2,5-dihydro-1H-pyrrole-2,5-dione distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

1-[2-chloro-5-(trifluoromethyl)phenyl]-2,5-dihydro-1H-pyrrole-2,5-dione (CAS 34520-60-0), molecular formula C11H5ClF3NO2 and molecular weight 275.61 g/mol, is a CATO reference standard with documented purity and traceability.

Based on its molecular formula C11H5ClF3NO2, 1-[2-chloro-5-(trifluoromethyl)phenyl]-2,5-dihydro-1H-pyrrole-2,5-dione 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 275.61 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

Physical & Chemical Properties

Molecular FormulaC11H5ClF3NO2
Molecular Weight275.61 g/mol
AppearancePale yellow to yellow crystalline powder. (slight halide-like odor, low volatility)
Purity97%+
StorageStore at 2-8°C, protect from light, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
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)8.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1966
Halogen ContentF/Cl-containing
Nitrogen Atoms1

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