5-(1-Ethyl-1h-pyrazol-3-yl)-1,2-oxazole-3-carboxylic acid CAS 1006484-70-3

Purity 97%+In StockPharmaceutical Standards
CAS No.1006484-70-3
Molecular FormulaC9H9N3O3
Molecular Weight207.19 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

5-(1-Ethyl-1h-pyrazol-3-yl)-1,2-oxazole-3-carboxylic acid CAS 1006484-70-3 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 207.19 g/mol gives 5-(1-Ethyl-1h-pyrazol-3-yl)-1,2-oxazole-3-carboxylic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies 5-(1-Ethyl-1h-pyrazol-3-yl)-1,2-oxazole-3-carboxylic acid (CAS 1006484-70-3), a certified reference material (molecular formula C9H9N3O3, MW 207.19 g/mol) for analytical method development and quality control.

Structurally, 5-(1-Ethyl-1h-pyrazol-3-yl)-1,2-oxazole-3-carboxylic acid (C9H9N3O3) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 207.19 g/mol, it falls into the medium-molecular-weight range. 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.

As a certified reference material (CRM), 5-(1-Ethyl-1h-pyrazol-3-yl)-1,2-oxazole-3-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 FormulaC9H9N3O3
Molecular Weight207.19 g/mol
AppearanceOff-white 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)7.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1988
Nitrogen Atoms3

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