5-Bromo-3-methoxybenzene-1,2-diol CAS 38790-07-7

Purity 97%+In StockPharmaceutical Standards
CAS No.38790-07-7
Molecular FormulaC7H7BrO3
Molecular Weight219.03 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

5-Bromo-3-methoxybenzene-1,2-diol CAS 38790-07-7 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 219.03 g/mol gives 5-Bromo-3-methoxybenzene-1,2-diol distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

5-Bromo-3-methoxybenzene-1,2-diol (CAS 38790-07-7), molecular formula C7H7BrO3 and molecular weight 219.03 g/mol, is a CATO reference standard with documented purity and traceability.

Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system, 5-Bromo-3-methoxybenzene-1,2-diol is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 219.03 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.

As a certified reference material (CRM), 5-Bromo-3-methoxybenzene-1,2-diol meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

Physical & Chemical Properties

Molecular FormulaC7H7BrO3
Molecular Weight219.03 g/mol
AppearanceOff-white to pale yellow crystalline powder. (slight halide-like odor)
Purity97%+
StorageStore in a cool place (≤25°C), keep sealed and dry, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in methanol, ethanol, DMSO, water
StabilityMay oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)4.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1968
Halogen ContentBr-containing

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Why CATO?