2,3,5,6-Tetrafluoropyridine-4-thiol CAS 19736-58-4

Purity 97%+In StockPharmaceutical Standards
CAS No.19736-58-4
Molecular FormulaC5HF4NS
Molecular Weight183.13 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2,3,5,6-Tetrafluoropyridine-4-thiol CAS 19736-58-4 chemical structure

Description

The occurrence of 2,3,5,6-Tetrafluoropyridine-4-thiol is closely related to a nitrile group, sulfur-containing functionality, fluorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

CATO supplies 2,3,5,6-Tetrafluoropyridine-4-thiol (CAS 19736-58-4), a certified reference material (molecular formula C5HF4NS, MW 183.13 g/mol) for analytical method development and quality control.

Owing to a nitrile group, sulfur-containing functionality, fluorine substitution, 2,3,5,6-Tetrafluoropyridine-4-thiol is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 183.13 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.

As a certified reference material (CRM), 2,3,5,6-Tetrafluoropyridine-4-thiol 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 FormulaC5HF4NS
Molecular Weight183.13 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in methanol, acetonitrile, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)4.0
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1962
Halogen ContentF-containing
Nitrogen Atoms1
Sulfur Atoms1

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