2-Mercaptopyridine N-Oxide - ≥95%(T) , CAS No.1121-31-9

CAS: 1121-31-9 Cat. No.: M158842 Molecular Weight: 127.16 Beilstein Registry Number: 109936 EC Number: 214-329-4

GRADE & PURITY ≥95%(T)

Synonyms

2-Mercaptopyridine monoxide | cid_1570 | 2-SULFANYLPYRIDIN-1-IUM-1-OLATE | NCGC00246995-01 | NSC179790 | NSC-179790 | Pyridine-2-thiol-1-oxide | 1-Hydroxy-2-pyridinethione | 2-mercaptopyridine n-oxide | BEW | BRN 0109936 | NSC 179790 | 2-Pyridinethiol, 1-

Storage

Store at 2-8°C,Argon charged

Shipped In

Wet ice

Overview

2-Mercaptopyridine N-oxide forms complexes on reaction with palladium chloride. It inhibits NADH-fumarate reductase purified from Trypanosoma cruzi. It is precursor to O-acyl thiohydroxamates. It ligates to metals to form biologically active complexes.
2-Mercaptopyridine N-oxide was used to investigate the mechanism of photodegradation of mercaptopyridine-N-oxide biocides. It was used in ratiometric fluorescence imaging of intracellular zinc ions in mammalian cultures.

Specifications

Synonyms

2-Mercaptopyridine monoxide | cid_1570 | 2-SULFANYLPYRIDIN-1-IUM-1-OLATE | NCGC00246995-01 | NSC179790 | NSC-179790 | Pyridine-2-thiol-1-oxide | 1-Hydroxy-2-pyridinethione | 2-mercaptopyridine n-oxide | BEW | BRN 0109936 | NSC 179790 | 2-Pyridinethiol, 1-

Specifications & Purity

≥95%(T)

Storage

Store at 2-8°C, Argon charged

Shipped In

Wet ice

This product requires cold chain shipping. Ground and other economy services are not available.

Purity

≥95%(T)

Names and Identifiers

• Pubchem Sid: 504750492
• Pubchem Sid Url: https://pubchem.ncbi.nlm.nih.gov/substance/504750492
• Canonical Smiles: C1=CC(=S)N(C=C1)O
• IUPAC Name: 1-hydroxypyridine-2-thione
• InChIKey: YBBJKCMMCRQZMA-UHFFFAOYSA-N
• INCHI: 1S/C5H5NOS/c7-6-4-2-1-3-5(6)8/h1-4,7H
• Isomeric SMILES: C1=CC(=S)N(C=C1)O
• WGK Germany: 3
• RTECS: UT8999000
• UN Number: UN 3335
• Packing Group: III
• Molecular Weight: 127.16
• Beilstein: 109936
• Reaxy-Rn: 109936
• Reaxys-RN_link_address: https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=109936&ln=

Taxonomic Classification

Taxonomy Tree

• Kingdom Organic compounds
  • Superclass Organoheterocyclic compounds
    • Class Pyridines and derivatives
      • Subclass Hydropyridines

• Kingdom: Organic compounds
• Superclass: Organoheterocyclic compounds
• Class: Pyridines and derivatives
• Subclass: Hydropyridines
• Intermediate Tree Nodes: Not available
• Direct Parent: Dihydropyridines
• Alternative Parents: Thiolactams Heteroaromatic compounds Azacyclic compounds Organosulfur compounds Organopnictogen compounds Organonitrogen compounds Organic oxygen compounds Hydrocarbon derivatives
• Molecular Framework: Aromatic heteromonocyclic compounds
• Substituents: Dihydropyridine - Heteroaromatic compound - Thiolactam - Azacycle - Organic nitrogen compound - Organic oxygen compound - Organopnictogen compound - Hydrocarbon derivative - Organosulfur compound - Organonitrogen compound - Aromatic heteromonocyclic compound
• Description: This compound belongs to the class of organic compounds known as dihydropyridines. These are compounds containing a dihydropyridine moiety, which is a semi-saturated pyridine derivative with two double bonds.
• External Descriptors: monohydroxypyridine - pyridinethione

Data sources

1. Djoumbou Feunang Y, Eisner R, Knox C, Chepelev L, Hastings J, Owen G, Fahy E, Steinbeck C, Subramanian S, Bolton E, Greiner R, and Wishart DS. ClassyFire: Automated Chemical Classification With A Comprehensive, Computable Taxonomy. Journal of Cheminformatics, 2016, 8:61.

DOI: 10.1186/s13321-016-0174-y

Chemical and Physical Properties

• Solubility: Soluble in tris-hydrochloric acid.
• Sensitivity: light & Moisture & heat & air sensitive
• Melt Point(°C): 70.0 - 73.0 °C
• Molecular Weight: 127.170 g/mol
• XLogP3: 0.500
• Hydrogen Bond Donor Count: 1
• Hydrogen Bond Acceptor Count: 2
• Rotatable Bond Count: 0
• Exact Mass: 127.009 Da
• Monoisotopic Mass: 127.009 Da
• Topological Polar Surface Area: 55.600 Ų
• Heavy Atom Count: 8
• Formal Charge: 0
• Complexity: 162.000
• Isotope Atom Count: 0
• Defined Atom Stereocenter Count: 0
• Undefined Atom Stereocenter Count: 0
• Defined Bond Stereocenter Count: 0
• Undefined Bond Stereocenter Count: 0
• The total count of all stereochemical bonds: 0
• Covalently-Bonded Unit Count: 1

References

1. Ya-Wei Geng, Tong Guo, Xiao-Qin Wang, Tian Han.  (2025)  Enhanced Magnetocaloric Effect and Single-Molecule Magnet Behavior in a Series of Sulfur-Containing Ligand-Based Ln9 Clusters (Ln = Gd, Tb, and Dy).  Magnetochemistry,  11  (9): (70).  [PMID:] [10.3390/magnetochemistry11090070]