Delafloxacin impurity 33 CAS 1620905-72-7

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.1620905-72-7
Molecular FormulaC20H16ClF3N4O4
Molecular Weight468.81 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Delafloxacin impurity 33 CAS 1620905-72-7 chemical structure

Description

Owing to a flavonoid core, an amide group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution, Delafloxacin impurity 33 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 468.81 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).

As a process- or degradation-related impurity, Delafloxacin impurity 33 (CAS 1620905-72-7, C20H16ClF3N4O4) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.

This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.

As a certified reference material (CRM), Delafloxacin impurity 33 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 FormulaC20H16ClF3N4O4
Molecular Weight468.81 g/mol
AppearancePale yellow to yellow crystalline powder. (slight halide-like odor, low volatility)
Purity97%+
StorageStore in a cool place (≤25°C), protect from light, keep sealed and dry
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)13.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1993
Halogen ContentF/Cl-containing
Nitrogen Atoms4

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