4556-23-4 4-Thiopyridine Pyridine-4-thiol 5-21-07-00167 (Beilstein Handbook Reference) BRN 0105869 EINECS 224-926-1 4-Mercaptopyridine NSC 76036 Pyridine, 4-mercapto- CAS 4556-23-4

Purity 97%+In StockPharmaceutical Standards
CAS No.4556-23-4
Molecular FormulaC5H11NS
Molecular Weight117.21 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4556-23-4 4-Thiopyridine Pyridine-4-thiol 5-21-07-00167 (Beilstein Handbook Reference) BRN 0105869 EINECS 224-926-1 4-Mercaptopyridine NSC 76036 Pyridine, 4-mercapto- CAS 4556-23-4 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 117.21 g/mol gives 4556-23-4 4-Thiopyridine Pyridine-4-thiol 5-21-07-00167 (Beilstein Handbook Reference) BRN 0105869 EINECS 224-926-1 4-Mercaptopyridine NSC 76036 Pyridine, 4-mercapto- distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies 4556-23-4 4-Thiopyridine Pyridine-4-thiol 5-21-07-00167 (Beilstein Handbook Reference) BRN 0105869 EINECS 224-926-1 4-Mercaptopyridine NSC 76036 Pyridine, 4-mercapto- (CAS 4556-23-4), a certified reference material (molecular formula C5H11NS, MW 117.21 g/mol) for analytical method development and quality control.

The molecular framework of 4556-23-4 4-Thiopyridine Pyridine-4-thiol 5-21-07-00167 (Beilstein Handbook Reference) BRN 0105869 EINECS 224-926-1 4-Mercaptopyridine NSC 76036 Pyridine, 4-mercapto- (C5H11NS) is characterized by sulfur-containing functionality. 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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

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), 4556-23-4 4-Thiopyridine Pyridine-4-thiol 5-21-07-00167 (Beilstein Handbook Reference) BRN 0105869 EINECS 224-926-1 4-Mercaptopyridine NSC 76036 Pyridine, 4-mercapto- 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 FormulaC5H11NS
Molecular Weight117.21 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in methanol, acetonitrile, DMSO
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)1.0
CAS Registry Year (est.)1958
Nitrogen Atoms1
Sulfur Atoms1

Recommended Standards

Why CATO?