Pazufloxacin Impurity 17 CAS 164851-44-9

Purity >90%In StockPharmacopoeial Impurity Standards
CAS No.164851-44-9
Molecular FormulaC16H14FNO6
Molecular Weight335.28 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Pazufloxacin Impurity 17 CAS 164851-44-9 chemical structure

Description

The occurrence of Pazufloxacin Impurity 17 is closely related to a flavonoid core, an amide group, a hydroxyl group, an ether linkage, fluorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

Pazufloxacin Impurity 17 (CAS 164851-44-9) is a certified pharmaceutical impurity reference standard with the molecular formula C16H14FNO6 and a molecular weight of 335.28 g/mol.

Structurally, Pazufloxacin Impurity 17 (C16H14FNO6) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage, fluorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 10.0, corresponding to approximately 10 ring(s) or double-bond equivalent(s). With a molecular weight of 335.28 g/mol, it falls into the moderately-high-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

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), Pazufloxacin Impurity 17 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 FormulaC16H14FNO6
Molecular Weight335.28 g/mol
AppearancePale yellow to yellow crystalline powder. (slight halide-like odor)
Purity>90%
StorageStore at 2-8°C, protect from light, keep sealed and dry
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)10.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2004
Halogen ContentF-containing
Nitrogen Atoms1

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