(4-(2-(1H-Pyrazol-1-yl)ethyl)piperazin-1-yl)(1-(thiophen-2-yl)cyclopentyl)methanone CAS 1286702-99-5

Purity 97%+In StockPharmaceutical Standards
CAS No.1286702-99-5
Molecular FormulaC19H26N4OS
Molecular Weight358.50 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

(4-(2-(1H-Pyrazol-1-yl)ethyl)piperazin-1-yl)(1-(thiophen-2-yl)cyclopentyl)methanone CAS 1286702-99-5 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 358.50 g/mol gives (4-(2-(1H-Pyrazol-1-yl)ethyl)piperazin-1-yl)(1-(thiophen-2-yl)cyclopentyl)methanone distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

(4-(2-(1H-Pyrazol-1-yl)ethyl)piperazin-1-yl)(1-(thiophen-2-yl)cyclopentyl)methanone (CAS 1286702-99-5), molecular formula C19H26N4OS and molecular weight 358.50 g/mol, is a CATO reference standard with documented purity and traceability.

The molecular framework of (4-(2-(1H-Pyrazol-1-yl)ethyl)piperazin-1-yl)(1-(thiophen-2-yl)cyclopentyl)methanone (C19H26N4OS) is characterized by a steroid core, an amide group, sulfur-containing functionality, 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).

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.

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 FormulaC19H26N4OS
Molecular Weight358.50 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)9.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1990
Nitrogen Atoms4
Sulfur Atoms1

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