Phloxine B CAS 18472-87-2

Purity >85%In StockPharmaceutical Standards
CAS No.18472-87-2
Molecular FormulaC20H2Br4Cl4O5
Molecular WeightN/A
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Phloxine B CAS 18472-87-2 chemical structure

Description

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

Phloxine B (CAS 18472-87-2), molecular formula C20H2Br4Cl4O5Na and molecular weight 806.64 g/mol, is a CATO reference standard with documented purity and traceability.

Phloxine B (C20H2Br4Cl4O5Na) contains a salt form, a flavonoid core, a hydroxyl group, an ether linkage, chlorine/bromine substitution. Halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

As a certified reference material (CRM), Phloxine B 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 FormulaC20H2Br4Cl4O5 2*Na
Molecular Weight806.64 g/mol
Purity>85%
StorageStore at room temperature, protect from light, keep sealed and dry
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)16.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1962
Halogen ContentCl/Br-containing

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Why CATO?