Fluorouracil Impurity 31 CAS 58629-87-1

Purity ≥85%In StockPharmacopoeial Impurity Standards
CAS No.58629-87-1
Molecular FormulaC3H3FO3
Molecular Weight106.05 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Fluorouracil Impurity 31 CAS 58629-87-1 chemical structure

Description

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.

Fluorouracil Impurity 31 (CAS 58629-87-1) is a certified pharmaceutical impurity reference standard with the molecular formula C3H3FO3 and a molecular weight of 106.05 g/mol.

Based on its molecular formula C3H3FO3, Fluorouracil Impurity 31 contains a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution; these features give the compound characteristic functional-group stretching vibrations in infrared spectroscopy. The molecular weight of 106.05 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

As a certified reference material (CRM), Fluorouracil Impurity 31 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 FormulaC3H3FO3
Molecular Weight106.05 g/mol
Purity≥85%
StorageStore at 2-8°C, keep sealed and dry, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in methanol, ethanol, DMSO, water
StabilityHygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)2.0
CAS Registry Year (est.)1973
Halogen ContentF-containing

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