Erythrosine B CAS 16423-68-0

Purity >95%In StockPharmaceutical Standards
CAS No.16423-68-0
Molecular FormulaC20H6I4O5
Molecular WeightN/A
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Erythrosine B CAS 16423-68-0 chemical structure

Description

As a certified reference material (CRM), Erythrosine 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.

Erythrosine B (CAS 16423-68-0) is a high-purity analytical reference standard with the molecular formula C20H6I4O5Na and a molecular weight of 856.85 g/mol.

Owing to a salt form, a flavonoid core, a hydroxyl group, an ether linkage, iodine substitution, Erythrosine B is typically pale yellow to yellow amorphous powder. Its solid-state physicochemical attributes — including a molecular weight of 856.85 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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

Physical & Chemical Properties

Molecular FormulaC20H6I4O5 2*Na
Molecular Weight856.85 g/mol
Purity>95%
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.)1961
Halogen ContentI-containing

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