tert-Butyl N-(4-bromo-3-chlorophenyl)-N-propylcarbamate CAS 1881328-27-3

Purity 97%+In StockPharmaceutical Standards
CAS No.1881328-27-3
Molecular FormulaC14H19BrClNO2
Molecular Weight348.66 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

tert-Butyl N-(4-bromo-3-chlorophenyl)-N-propylcarbamate CAS 1881328-27-3 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 348.66 g/mol gives tert-Butyl N-(4-bromo-3-chlorophenyl)-N-propylcarbamate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

tert-Butyl N-(4-bromo-3-chlorophenyl)-N-propylcarbamate (CAS 1881328-27-3), molecular formula C14H19BrClNO2 and molecular weight 348.66 g/mol, is a CATO reference standard with documented purity and traceability.

Based on its molecular formula C14H19BrClNO2, tert-Butyl N-(4-bromo-3-chlorophenyl)-N-propylcarbamate contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine/bromine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 348.66 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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 FormulaC14H19BrClNO2
Molecular Weight348.66 g/mol
AppearanceOff-white to pale yellow crystalline powder. (slight halide-like odor, low volatility)
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
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)5.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1995
Halogen ContentCl/Br-containing
Nitrogen Atoms1

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