6β-Hydroxy 21-Acetyloxy Budesonide CAS 93789-69-6

Purity 97%+In StockPharmaceutical Standards
CAS No.93789-69-6
Molecular FormulaC28H38O7
Molecular Weight486.60 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

6β-Hydroxy 21-Acetyloxy Budesonide CAS 93789-69-6 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 486.60 g/mol gives 6β-Hydroxy 21-Acetyloxy Budesonide distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

6β-Hydroxy 21-Acetyloxy Budesonide (CAS 93789-69-6) is a high-purity analytical reference standard with the molecular formula C28H38O7 and a molecular weight of 486.60 g/mol.

The molecular framework of 6β-Hydroxy 21-Acetyloxy Budesonide (C28H38O7) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, 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).

This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

Physical & Chemical Properties

Molecular FormulaC28H38O7
Molecular Weight486.60 g/mol
AppearancePale yellow to yellow crystalline powder
Purity97%+
StorageStore at room temperature, 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
Degree of Unsaturation (DBE)10.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1983

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