Prednisolone EP Impurity J CAS 1807-14-3

Purity >95%In StockPharmacopoeial Impurity Standards
CAS No.1807-14-3
Molecular FormulaC21H28O4
Molecular Weight344.44 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Prednisolone EP Impurity J CAS 1807-14-3 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 344.44 g/mol gives Prednisolone EP Impurity J distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

Prednisolone EP Impurity J (CAS 1807-14-3) is a certified pharmaceutical impurity reference standard with the molecular formula C21H28O4 and a molecular weight of 344.44 g/mol.

Structurally, Prednisolone EP Impurity J (C21H28O4) contains a flavonoid core, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 344.44 g/mol, it falls into the moderately-high-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

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 Prednisolone EP Impurity J 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 FormulaC21H28O4
Molecular Weight344.44 g/mol
AppearancePale yellow to yellow crystalline powder
Purity>95%
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)8.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1957

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