Ethyl 5-amino-3-oxo-2,3-dihydro-1h-pyrazole-4-carboxylate CAS 52565-83-0

Purity 97%+In StockPharmaceutical Standards
CAS No.52565-83-0
Molecular FormulaC6H9N3O3
Molecular Weight171.15 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Ethyl 5-amino-3-oxo-2,3-dihydro-1h-pyrazole-4-carboxylate CAS 52565-83-0 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 171.15 g/mol gives Ethyl 5-amino-3-oxo-2,3-dihydro-1h-pyrazole-4-carboxylate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

Ethyl 5-amino-3-oxo-2,3-dihydro-1h-pyrazole-4-carboxylate (CAS 52565-83-0) is a high-purity analytical reference standard with the molecular formula C6H9N3O3 and a molecular weight of 171.15 g/mol.

Based on its molecular formula C6H9N3O3, Ethyl 5-amino-3-oxo-2,3-dihydro-1h-pyrazole-4-carboxylate contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 171.15 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

Physical & Chemical Properties

Molecular FormulaC6H9N3O3
Molecular Weight171.15 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, water
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)4.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1972
Nitrogen Atoms3

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