Budesonide Impurity 40 CAS 91160-89-3

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.91160-89-3
Molecular FormulaC23H29BrO7
Molecular Weight497.38 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Budesonide Impurity 40 CAS 91160-89-3 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 497.38 g/mol gives Budesonide Impurity 40 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

Budesonide Impurity 40 (CAS 91160-89-3) is a certified pharmaceutical impurity reference standard with the molecular formula C23H29BrO7 and a molecular weight of 497.38 g/mol.

Based on its molecular formula C23H29BrO7, Budesonide Impurity 40 contains a flavonoid core, a hydroxyl group, an ether linkage, bromine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 497.38 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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 Budesonide Impurity 40 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 FormulaC23H29BrO7
Molecular Weight497.38 g/mol
AppearancePale yellow to yellow crystalline powder. (slight halide-like odor)
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; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)9.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1983
Halogen ContentBr-containing

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