4-Cyclopentyl-1H-pyrazole CAS 90253-22-8

Purity 97%+In StockPharmaceutical Standards
CAS No.90253-22-8
Molecular FormulaC8H12N2
Molecular Weight136.19 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4-Cyclopentyl-1H-pyrazole CAS 90253-22-8 chemical structure

Description

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.

4-Cyclopentyl-1H-pyrazole (CAS 90253-22-8), molecular formula C8H12N2 and molecular weight 136.19 g/mol, is a CATO reference standard with documented purity and traceability.

4-Cyclopentyl-1H-pyrazole (C8H12N2) contains a nitrogen-containing heterocyclic scaffold, a nitrile group. Its physicochemical properties are representative of its class; 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).

As a certified reference material (CRM), 4-Cyclopentyl-1H-pyrazole 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 FormulaC8H12N2
Molecular Weight136.19 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)4.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1982
Nitrogen Atoms2

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