3-Bromophthalide CAS 6940-49-4

Purity >95%In StockPharmaceutical Standards
CAS No.6940-49-4
Molecular FormulaC8H5BrO2
Molecular Weight213.03 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

3-Bromophthalide CAS 6940-49-4 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 213.03 g/mol gives 3-Bromophthalide distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies 3-Bromophthalide (CAS 6940-49-4), a certified reference material (molecular formula C8H5BrO2, MW 213.03 g/mol) for analytical method development and quality control.

Structurally, 3-Bromophthalide (C8H5BrO2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 213.03 g/mol, it falls into the medium-molecular-weight range. 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.

CATO manufactures 3-Bromophthalide under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

Physical & Chemical Properties

Molecular FormulaC8H5BrO2
Molecular Weight213.03 g/mol
AppearanceOff-white to pale yellow crystalline powder. (slight halide-like odor)
Purity>95%
StorageStore at 2-8°C, protect from light, keep tightly closed to prevent evaporation
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)6.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1958
Halogen ContentBr-containing

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