Olopatadine Impurity C504 HBr CAS 27710-82-3

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.27710-82-3
Molecular FormulaC23H27NP
Molecular WeightN/A
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Olopatadine Impurity C504 HBr CAS 27710-82-3 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 509.27 g/mol gives Olopatadine Impurity C504 HBr distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

Olopatadine Impurity C504 HBr (CAS 27710-82-3) is a certified pharmaceutical impurity reference standard with the molecular formula C23H27NPHBrBr and a molecular weight of 509.27 g/mol.

The molecular framework of Olopatadine Impurity C504 HBr (C23H27NPHBrBr) is characterized by a nitrogen-containing heterocyclic scaffold, a nitrile group, organophosphorus functionality, bromine substitution. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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).

Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.

As a certified reference material (CRM), Olopatadine Impurity C504 HBr 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 FormulaC23H27NP HBr Br
Molecular Weight509.27 g/mol
AppearancePale yellow to yellow crystalline powder. (slight halide-like odor, low volatility)
Purity97%+
StorageStore at room temperature, protect from light
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)9.5
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1964
Halogen ContentBr-containing
Nitrogen Atoms1

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