4-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-1H-pyrazole-3-carboxylic acid CAS 1936394-09-0

Purity 97%+In StockPharmaceutical Standards
CAS No.1936394-09-0
Molecular FormulaC19H15N3O4
Molecular Weight349.34 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-1H-pyrazole-3-carboxylic acid CAS 1936394-09-0 chemical structure

Description

4-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-1H-pyrazole-3-carboxylic acid (C19H15N3O4) contains a flavonoid core, 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).

4-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-1H-pyrazole-3-carboxylic acid (CAS 1936394-09-0), molecular formula C19H15N3O4 and molecular weight 349.34 g/mol, is a CATO reference standard with documented purity and traceability.

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.

CATO manufactures 4-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-1H-pyrazole-3-carboxylic acid under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

Physical & Chemical Properties

Molecular FormulaC19H15N3O4
Molecular Weight349.34 g/mol
AppearancePale yellow to yellow crystalline powder
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)14.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1996
Nitrogen Atoms3

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