3-Phenylquinoxaline-2(1H)-thione CAS 58861-61-3

Purity 97%+In StockPharmaceutical Standards
CAS No.58861-61-3
Molecular FormulaC14H10N2S
Molecular Weight238.31 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

3-Phenylquinoxaline-2(1H)-thione CAS 58861-61-3 chemical structure

Description

As a certified reference material (CRM), 3-Phenylquinoxaline-2(1H)-thione 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.

3-Phenylquinoxaline-2(1H)-thione (CAS 58861-61-3), molecular formula C14H10N2S and molecular weight 238.31 g/mol, is a CATO reference standard with documented purity and traceability.

Based on its molecular formula C14H10N2S, 3-Phenylquinoxaline-2(1H)-thione contains a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 238.31 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

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.

Physical & Chemical Properties

Molecular FormulaC14H10N2S
Molecular Weight238.31 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)11.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1973
Nitrogen Atoms2
Sulfur Atoms1

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Why CATO?