3-(4-Chlorophenyl)-7-(thiophen-2-yl)pyrazolo[1,5-a]pyrimidine CAS 439095-36-0

Purity 97%+In StockPharmaceutical Standards
CAS No.439095-36-0
Molecular FormulaC16H10ClN3S
Molecular Weight311.79 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

3-(4-Chlorophenyl)-7-(thiophen-2-yl)pyrazolo[1,5-a]pyrimidine CAS 439095-36-0 chemical structure

Description

The occurrence of 3-(4-Chlorophenyl)-7-(thiophen-2-yl)pyrazolo[1,5-a]pyrimidine is closely related to a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

3-(4-Chlorophenyl)-7-(thiophen-2-yl)pyrazolo[1,5-a]pyrimidine (CAS 439095-36-0), molecular formula C16H10ClN3S and molecular weight 311.79 g/mol, is a CATO reference standard with documented purity and traceability.

3-(4-Chlorophenyl)-7-(thiophen-2-yl)pyrazolo[1,5-a]pyrimidine (C16H10ClN3S) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality, chlorine substitution. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility; 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.

As a certified reference material (CRM), 3-(4-Chlorophenyl)-7-(thiophen-2-yl)pyrazolo[1,5-a]pyrimidine 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 FormulaC16H10ClN3S
Molecular Weight311.79 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)13.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2025
Halogen ContentCl-containing
Nitrogen Atoms3
Sulfur Atoms1

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