1-(3-Ethyl-5-hydroxy-5-(pyridin-4-yl)-4,5-dihydro-1H-pyrazol-1-yl)-2-(4-methoxyphenyl)ethan-1-one CAS 6009-31-0

Purity 97%+In StockPharmaceutical Standards
CAS No.6009-31-0
Molecular FormulaC19H21N3O3
Molecular Weight339.39 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

1-(3-Ethyl-5-hydroxy-5-(pyridin-4-yl)-4,5-dihydro-1H-pyrazol-1-yl)-2-(4-methoxyphenyl)ethan-1-one CAS 6009-31-0 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 339.39 g/mol gives 1-(3-Ethyl-5-hydroxy-5-(pyridin-4-yl)-4,5-dihydro-1H-pyrazol-1-yl)-2-(4-methoxyphenyl)ethan-1-one distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

1-(3-Ethyl-5-hydroxy-5-(pyridin-4-yl)-4,5-dihydro-1H-pyrazol-1-yl)-2-(4-methoxyphenyl)ethan-1-one (CAS 6009-31-0) is a high-purity analytical reference standard with the molecular formula C19H21N3O3 and a molecular weight of 339.39 g/mol.

1-(3-Ethyl-5-hydroxy-5-(pyridin-4-yl)-4,5-dihydro-1H-pyrazol-1-yl)-2-(4-methoxyphenyl)ethan-1-one (C19H21N3O3) contains a steroid 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 aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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 1-(3-Ethyl-5-hydroxy-5-(pyridin-4-yl)-4,5-dihydro-1H-pyrazol-1-yl)-2-(4-methoxyphenyl)ethan-1-one 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 FormulaC19H21N3O3
Molecular Weight339.39 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)11.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1958
Nitrogen Atoms3

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