4-(4-(Benzyloxy)-2-methylbenzoyl)-5-(3-bromophenyl)-3-hydroxy-1-(2-methoxyethyl)-1H-pyrrol-2(5H)-one CAS 488853-85-6

Purity 97%+In StockPharmaceutical Standards
CAS No.488853-85-6
Molecular FormulaC28H26BrNO5
Molecular Weight536.41 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4-(4-(Benzyloxy)-2-methylbenzoyl)-5-(3-bromophenyl)-3-hydroxy-1-(2-methoxyethyl)-1H-pyrrol-2(5H)-one CAS 488853-85-6 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 536.41 g/mol gives 4-(4-(Benzyloxy)-2-methylbenzoyl)-5-(3-bromophenyl)-3-hydroxy-1-(2-methoxyethyl)-1H-pyrrol-2(5H)-one distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

4-(4-(Benzyloxy)-2-methylbenzoyl)-5-(3-bromophenyl)-3-hydroxy-1-(2-methoxyethyl)-1H-pyrrol-2(5H)-one (CAS 488853-85-6), molecular formula C28H26BrNO5 and molecular weight 536.41 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, 4-(4-(Benzyloxy)-2-methylbenzoyl)-5-(3-bromophenyl)-3-hydroxy-1-(2-methoxyethyl)-1H-pyrrol-2(5H)-one (C28H26BrNO5) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, bromine substitution. The molecule exhibits a degree of unsaturation (DBE) of 16.0, corresponding to approximately 16 ring(s) or double-bond equivalent(s). With a molecular weight of 536.41 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).

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 FormulaC28H26BrNO5
Molecular Weight536.41 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)16.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2025
Halogen ContentBr-containing
Nitrogen Atoms1

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