Phloroglucinol Impurity 20 CAS 626-41-5

Purity >95%In StockPharmacopoeial Impurity Standards
CAS No.626-41-5
Molecular FormulaC6H4Br2O
Molecular Weight251.90 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Phloroglucinol Impurity 20 CAS 626-41-5 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 251.90 g/mol gives Phloroglucinol Impurity 20 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

Phloroglucinol Impurity 20 (CAS 626-41-5) is a certified pharmaceutical impurity reference standard with the molecular formula C6H4Br2O and a molecular weight of 251.90 g/mol.

Owing to a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system, Phloroglucinol Impurity 20 is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 251.90 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).

Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.

CATO manufactures Phloroglucinol Impurity 20 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 FormulaC6H4Br2O
Molecular Weight251.90 g/mol
AppearanceOff-white to pale yellow crystalline powder. (slight halide-like odor, low volatility)
Purity>95%
StorageStore at room temperature, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityMay oxidize slowly on prolonged air exposure
Degree of Unsaturation (DBE)4.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1957
Halogen ContentBr-containing

Related Phloroglucinol Standards

Recommended Standards

Why CATO?