(2S,4S)-4-(4-bromo-2-chlorophenoxy)-1-(tert-butoxycarbonyl)pyrrolidine-2-carboxylic acid CAS 1354485-75-8

Purity 97%+In StockPharmaceutical Standards
CAS No.1354485-75-8
Molecular FormulaC16H19BrClNO5
Molecular Weight420.68 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

(2S,4S)-4-(4-bromo-2-chlorophenoxy)-1-(tert-butoxycarbonyl)pyrrolidine-2-carboxylic acid CAS 1354485-75-8 chemical structure

Description

The occurrence of (2S,4S)-4-(4-bromo-2-chlorophenoxy)-1-(tert-butoxycarbonyl)pyrrolidine-2-carboxylic acid is closely related to a flavonoid core, an amide group, a hydroxyl group, an ether linkage, chlorine/bromine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

(2S,4S)-4-(4-bromo-2-chlorophenoxy)-1-(tert-butoxycarbonyl)pyrrolidine-2-carboxylic acid (CAS 1354485-75-8), molecular formula C16H19BrClNO5 and molecular weight 420.68 g/mol, is a CATO reference standard with documented purity and traceability.

Owing to a flavonoid core, an amide group, a hydroxyl group, an ether linkage, chlorine/bromine substitution, (2S,4S)-4-(4-bromo-2-chlorophenoxy)-1-(tert-butoxycarbonyl)pyrrolidine-2-carboxylic acid is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 420.68 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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 FormulaC16H19BrClNO5
Molecular Weight420.68 g/mol
AppearanceOff-white to pale yellow crystalline powder. (slight halide-like odor, low volatility)
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)7.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1991
Halogen ContentCl/Br-containing
Nitrogen Atoms1

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