5-Bromo-7-(oxiran-2-yl)-2,3-dihydrobenzo[b][1,4]dioxine CAS 1492940-67-6

Purity 97%+In StockPharmaceutical Standards
CAS No.1492940-67-6
Molecular FormulaC10H9BrO3
Molecular Weight257.08 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

5-Bromo-7-(oxiran-2-yl)-2,3-dihydrobenzo[b][1,4]dioxine CAS 1492940-67-6 chemical structure

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 5-Bromo-7-(oxiran-2-yl)-2,3-dihydrobenzo[b][1,4]dioxine.

CATO supplies 5-Bromo-7-(oxiran-2-yl)-2,3-dihydrobenzo[b][1,4]dioxine (CAS 1492940-67-6), a certified reference material (molecular formula C10H9BrO3, MW 257.08 g/mol) for analytical method development and quality control.

Based on its molecular formula C10H9BrO3, 5-Bromo-7-(oxiran-2-yl)-2,3-dihydrobenzo[b][1,4]dioxine contains a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 257.08 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

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 FormulaC10H9BrO3
Molecular Weight257.08 g/mol
AppearanceOff-white to pale yellow crystalline powder. (slight halide-like odor)
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in methanol, ethanol, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)6.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1992
Halogen ContentBr-containing

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