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5,5'-Dimethyl-2,2'-bipyridine

CAS Number 1762-34-1

Chemistry Building Blocks, Heterocyclic Building Blocks, Monomers


Product Code B1471-10g
Price $138 ex. VAT

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A frequent bipyridyl ligand and intermediate

Available for the synthesis of organometallic complexes, photosensitizers, and pharmaceuticals applications


5,5'-Dimethyl-2,2'-bipyridine (or 5,5'-Dimethyl-2,2'-bipyridyl) is a bipyridyl derivative with dimethyl functional groups at 5,5-positions. Dimethyl groups can be further oxidised to prepare 2,2'-bipyridine-5,5'-dicarboxylic acid. 5,5'-Dimethyl-2,2'-bipyridine is widely used as a ligand for organometallic chemical synthesis and pharmaceuticals applications.

Exhibiting high luminescence for G-quadruplex DNA, iridium(III) complex [Ir(pbi)2(5,5'-dmbpy)]PF6 is employed to construct G-quadruplex-based assay for protein tyrosine kinase-7 (PTK7) in aqueous solution. PTK7 is an important biomarker for a range of leukaemia and solid tumours. 5,5′-dimethyl -2, 2′-dipyridyl demonstrates significant activity against embryos and was capable of arresting development at a number of stages of embryogenesis.

General Information

CAS Number 1762-34-1
Chemical Formula C12H12N2
Full Name 5,5′-Dimethyl-2,2′-bipyridine
Molecular Weight 184.24 g/mol
Synonyms 5,5'-Dimethyl-2,2'-bipyridyl, 5,5'-dmbpy
Classification / Family Bipyridine derivatives, Semiconductor synthesis intermediates, OLED, OFETs, organic photovoltaics

Chemical Structure

5,5'-Dimethyl-2,2'-bipyridine chemical structure, 1762-34-1
5,5'-Dimethyl-2,2'-bipyridine (5,5'-dmbpy) chemical structure, CAS 1762-34-1

Product Details

Purity >98% (1H NMR)
Melting Point Tm = 115 °C
Appearance Off white powder

MSDS Documentation

5,5'-Dimethyl-2,2'-bipyridine5,5'-Dimethyl-2,2'-bipyridine MSDS Sheet

Literature and Reviews

  1. Luminescence switch-on detection of protein tyrosine kinase-7 using a G-quadruplex-selective probe, Chem. Sci., 6, 4284-4290 (2015); DOI: 10.1039/C5SC01320H.
  2. A novel Au(III) complex with the 5,5′-dimethyl-2,2′-bipyridine ligand: Synthesis, characterization, X-ray crystal structure and biological evaluation, T. Kondori et al., Polyhedron, 210, 115513 (2021); 10.1016/j.poly.2021.115513.
  3. Supramolecular architectures of mononuclear nickel(II) and homobinuclear copper(II) complexes square with the 5,5’dimethyl-2,2’-bipyridine ligand: Syntheses, Crystal structures and Hirshfeld surface analyses, W. Maalej et al., J. Mol. Struct., 1250, 131727 (2022); DOI: 10.1016/j.molstruc.2021.131728.
  4. Assessment of the interaction procedure between Pt(IV) prodrug [Pt(5,5′-dmbpy)Cl4 and human serum albumin: Combination of spectroscopic and molecular modeling technique, S. Shahraki et al., J. Biomol. Struct. Dyn., 35 (14), 3098-3106 (2017); DOI: 10.1080/07391102.2016.1243074.
  5. Two new lead(II) coordination polymer and discrete complex containing bipyridine ligands with different positioned methyl substituents: synthesis, characterization, crystal structure determination, and luminescent properties, R. Alizadeh et al., Struct. Chem. 22, 1153–1163 (2011): DOI: 10.1007/s11224-011-9809-9.

To the best of our knowledge the information provided here is accurate. The values provided are typical at the time of manufacture and may vary over time and from batch to batch. Products may have minor cosmetic differences (e.g. to the branding) compared to the photos on our website. All products are for laboratory and research and development use only.

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