5-Amino-4,5-dihydro-3H-pyrazol-3-one CAS 141735-80-0

Purity 97%+In StockPharmaceutical Standards
CAS No.141735-80-0
Molecular FormulaC3H5N3O
Molecular Weight99.09 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

5-Amino-4,5-dihydro-3H-pyrazol-3-one CAS 141735-80-0 chemical structure

Description

CATO supplies 5-Amino-4,5-dihydro-3H-pyrazol-3-one (CAS 141735-80-0), a certified reference material (molecular formula C3H5N3O, MW 99.09 g/mol) for analytical method development and quality control.

The molecular framework of 5-Amino-4,5-dihydro-3H-pyrazol-3-one (C3H5N3O) is characterized by an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing 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.

As a certified reference material (CRM), 5-Amino-4,5-dihydro-3H-pyrazol-3-one 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 FormulaC3H5N3O
Molecular Weight99.09 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)3.0
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1997
Nitrogen Atoms3

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