5-methoxy-1H-1,3-benzodiazole-2-carboxylic acid CAS 887572-60-3

Purity 97%+In StockPharmaceutical Standards
CAS No.887572-60-3
Molecular FormulaC9H16N2O3
Molecular Weight200.23 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

5-methoxy-1H-1,3-benzodiazole-2-carboxylic acid CAS 887572-60-3 chemical structure

Description

The occurrence of 5-methoxy-1H-1,3-benzodiazole-2-carboxylic acid is closely related to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

5-methoxy-1H-1,3-benzodiazole-2-carboxylic acid (CAS 887572-60-3), molecular formula C9H16N2O3 and molecular weight 200.23 g/mol, is a CATO reference standard with documented purity and traceability.

5-methoxy-1H-1,3-benzodiazole-2-carboxylic acid (C9H16N2O3) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).

This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.

As a certified reference material (CRM), 5-methoxy-1H-1,3-benzodiazole-2-carboxylic 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.

Physical & Chemical Properties

Molecular FormulaC9H16N2O3
Molecular Weight200.23 g/mol
AppearanceWhite to pale yellow crystalline powder. (faint amine-like odor)
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)3.0
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1987
Nitrogen Atoms2

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