Date published: 2026-4-25

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2,2′-Dithiobis(pyridine-N-oxide) (CAS 3696-28-4)

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CAS Number:
3696-28-4
Molecular Weight:
252.31
Molecular Formula:
C10H8N2O2S2
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
* Refer to Certificate of Analysis for lot specific data.

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2,2′-Dithiobis(pyridine-N-oxide) is an organosulfur compound. It exists as a colorless or yellowish-white crystalline solid that readily dissolves in water and alcohol. 2,2′-Dithiobis(pyridine-N-oxide) serves as a valuable reagent in scientific research and finds applications as a catalyst in laboratory experiments. 2,2′-Dithiobis(pyridine-N-oxide) contributes to the synthesis of biopolymers like chitosan and polysaccharides. The compound is instrumental in studying enzyme reactions, analyzing proteins and carbohydrates, investigating cell metabolism, as well as detecting DNA and RNA. As a reagent, 2,2′-Dithiobis(pyridine-N-oxide) acts as a catalyst in various chemical reactions. It effectively lowers the activation energy required for these reactions, enabling them to occur more rapidly and efficiently.


2,2′-Dithiobis(pyridine-N-oxide) (CAS 3696-28-4) References

  1. A host-guest complex of diaquabis[1-hydroxy-2(1H)-pyridinethionato-O,S]magnesium(II) and 2,2'-dithiobis(pyridine N-oxide).  |  Bond, A. and Jones, W. 2000. Acta Crystallogr C. 56 (Pt 4): 436-7. PMID: 10815200
  2. Cortamidine oxide, a novel disulfide metabolite from the New Zealand basidiomycete (mushroom) Cortinarius species.  |  Nicholas, GM., et al. 2001. J Nat Prod. 64: 341-4. PMID: 11277751
  3. New finding of an anti-TB compound in the genus Marsypopetalum (Annonaceae) from a traditional herbal remedy of Laos.  |  Elkington, BG., et al. 2014. J Ethnopharmacol. 151: 903-11. PMID: 24333958
  4. A mass spectrometry and DFT study of pyrithione complexes with transition metals in the gas phase.  |  Butler, M. and Cabrera, GM. 2017. J Mass Spectrom. 52: 728-738. PMID: 28741315
  5. Investigating Structural Property Relationships to Enable Repurposing of Pharmaceuticals as Zinc Ionophores.  |  Kavanagh, O., et al. 2021. Pharmaceutics. 13: PMID: 34959313
  6. Photochemistry of 2-mercaptopyridines. Part 2. An EPR and spin-trapping investigation using 2-methyl-2-nitrosopropane and aci-nitromethane as spin traps in aqueous solutions.  |  Reszka, KJ. and Chignell, CF. 1994. Photochem Photobiol. 60: 450-4. PMID: 7800716

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

2,2′-Dithiobis(pyridine-N-oxide), 1 g

sc-484710
1 g
$46.00