4,4′-Trimethylenedipyridine
4,4′-Trimethylenedipyridine (CAS 17252-51-6), with the molecular formula C13H14N2 and a molecular weight of 198.26 g/mol, is a heterocyclic organic compound. This chemical functions as a building block in synthesis and has been utilised as a ligand in redox-active systems and in the construction of cadmium-organic frameworks. It is supplied by Tech Serve Solutions with a typical assay of 98%.
- IUPAC
- 1,3-Bis(4-pyridyl)propane
- Synonyms
- 1,3-Bis(4-pyridyl)propane

Ligand in Redox Systems
Utilised as a ligand in studying solvent effects on the formal potential of redox-active self-assembling systems, such as [Os(bpy)2(dipy)Cl]1+.
Synthesis of Metal-Organic Frameworks
Employed in the preparation of two- and three-dimensional cadmium-organic frameworks, demonstrating its utility in coordination chemistry and materials science.
Chemical Synthesis Building Block
Serves as a versatile building block for the synthesis of more complex organic molecules, particularly within heterocyclic chemistry.
| Molecular weight | 198.26 |
|---|---|
| Empirical formula | C13H14N2 |
| Assay | 98% |
| Application | 4,4′-Trimethylenedipyridine was used as ligand to study the solvent effects on the formal potential of redox-active self-assembling system [Os(bpy)2(dipy)Cl]1+ (bpy= 2,2′-bipyridine, dipy= 4,4′-Trimethylenedipyridine) in different organic solvents and aqueous solutions1. It was used in the synthesis of two- and three-dimensional cadmium-organic frameworks2. |
| Melting point | 57-60 °C(lit.) |

Hazard statements
- H302Harmful if swallowed
- H312Harmful in contact with skin
- H315Causes skin irritation
- H319Causes serious eye irritation
- H332Harmful if inhaled
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 20/21/22-36/37/38 |
| Safety statements (S) | 26-28-36/37/39-45 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is 4,4′-Trimethylenedipyridine used for?
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4,4′-Trimethylenedipyridine is used as a ligand in studying redox-active systems and in the synthesis of metal-organic frameworks. It also functions as a building block in chemical synthesis.
What is the CAS number and molecular formula for 4,4′-Trimethylenedipyridine?
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The CAS number for 4,4′-Trimethylenedipyridine is 17252-51-6, and its molecular formula is C13H14N2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 4,4′-Trimethylenedipyridine with a typical assay of 98%. This product is not represented as USP, BP, or EP grade.
What are the primary safety concerns when handling 4,4′-Trimethylenedipyridine?
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4,4′-Trimethylenedipyridine is a Warning substance. It is harmful if swallowed, in contact with skin, or if inhaled, and causes skin and serious eye irritation. It may also cause respiratory irritation. Appropriate personal protective equipment, including a dust mask (type N95 US), eyeshields, and gloves, should be used, and handling should occur in a well-ventilated area.
How is 4,4′-Trimethylenedipyridine packed, shipped, and exported?
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4,4′-Trimethylenedipyridine is carefully packed according to international shipping regulations. Tech Serve Solutions is an experienced global exporter of fine chemicals.
How can I request a sample or quote for 4,4′-Trimethylenedipyridine?
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To request a sample or a quote for 4,4′-Trimethylenedipyridine, please contact the Tech Serve Solutions sales team through our website or direct inquiry channels.
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