Tartrazine Impurity 5 CAS 76-30-2

Purity >95%In StockPharmacopoeial Impurity Standards
CAS No.76-30-2
Molecular FormulaC4H6O8
Molecular Weight182.09 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Tartrazine Impurity 5 CAS 76-30-2 chemical structure

Description

CATO supplies Tartrazine Impurity 5 (CAS 76-30-2), a pharmacopoeial impurity reference standard (molecular formula C4H6O8, MW 182.09 g/mol) used for the identification and quantification of trace impurities in APIs.

Based on its molecular formula C4H6O8, Tartrazine Impurity 5 contains a carbohydrate-derived structure; these features give the compound characteristic functional-group stretching vibrations in infrared spectroscopy. The molecular weight of 182.09 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry.

This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.

As a certified reference material (CRM), Tartrazine Impurity 5 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 FormulaC4H6O8
Molecular Weight182.09 g/mol
Purity>95%
StorageStore at 2-8°C, keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO, water
StabilityHygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)2.0
CAS Registry Year (est.)1957

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