侧链酸亚硝基杂质 CAS CATO-C3D-262723

Purity 95%In StockPharmacopoeial Impurity Standards
CAS No.CATO-C3D-262723
Molecular FormulaC12H14N2O4
Molecular Weight250.25 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

侧链酸亚硝基杂质 CAS CATO-C3D-262723 chemical structure

Description

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 supplies 侧链酸亚硝基杂质 (CAS CATO-C3D-262723), a pharmacopoeial impurity reference standard (molecular formula C12H14N2O4, MW 250.25 g/mol) used for the identification and quantification of trace impurities in APIs.

侧链酸亚硝基杂质 (C12H14N2O4) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

As a certified reference material (CRM), 侧链酸亚硝基杂质 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 FormulaC12H14N2O4
Molecular Weight250.25 g/mol
AppearanceOff-white to pale yellow crystalline powder
Purity95%
StorageStore at 2-8°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
Degree of Unsaturation (DBE)7.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
Nitrogen Atoms2

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