Mesoxalic acid CAS 473-90-5

Purity 97%+In StockPharmaceutical Standards
CAS No.473-90-5
Molecular FormulaC3H2O5
Molecular Weight118.04 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Mesoxalic acid CAS 473-90-5 chemical structure

Description

As a certified reference material (CRM), Mesoxalic acid 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.

Mesoxalic acid (CAS 473-90-5) is a high-purity analytical reference standard with the molecular formula C3H2O5 and a molecular weight of 118.04 g/mol.

The molecular framework of Mesoxalic acid (C3H2O5) is characterized by a carboxylic acid group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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 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 FormulaC3H2O5
Molecular Weight118.04 g/mol
Purity97%+
StorageStore at 2-8°C, keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO, water
StabilityMay oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)3.0
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1957

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