Empagliflozin Impurity 44 CAS CATO-C4X-106544

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.CATO-C4X-106544
Molecular FormulaC19H20ClFO5
Molecular Weight382.81 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Empagliflozin Impurity 44 CAS CATO-C4X-106544 chemical structure

Description

The occurrence of Empagliflozin Impurity 44 is closely related to a flavonoid core, a hydroxyl group, an ether linkage, fluorine/chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

CATO supplies Empagliflozin Impurity 44 (CAS CATO-C4X-106544), a pharmacopoeial impurity reference standard (molecular formula C19H20ClFO5, MW 382.81 g/mol) used for the identification and quantification of trace impurities in APIs.

Structurally, Empagliflozin Impurity 44 (C19H20ClFO5) contains a flavonoid core, a hydroxyl group, an ether linkage, fluorine/chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 9.0, corresponding to approximately 9 ring(s) or double-bond equivalent(s). With a molecular weight of 382.81 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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.

CATO manufactures Empagliflozin Impurity 44 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

Physical & Chemical Properties

Molecular FormulaC19H20ClFO5
Molecular Weight382.81 g/mol
AppearancePale yellow to yellow crystalline powder. (slight halide-like odor, low volatility)
Purity97%+
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)9.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
Halogen ContentF/Cl-containing

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