Molekula
4,4'-Dipyridyl
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
4,4'-Dipyridyl is an organic compound belonging to the pyridine family, widely used as a ligand in coordination chemistry, a reagent in organic synthesis, and a building block for pharmaceuticals and polymers. It is also employed in analytical chemistry for metal ion detection and as a precursor in the production of dyes and agrochemicals. This chemical has a CAS number of 553-26-4, a molecular formula of C10H8N2, and a molecular weight of 156.18 g/mol. It is stored at ambient conditions and carries a signal word of "Danger" due to its hazardous properties. Molekula supplies 4,4'-Dipyridyl from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.
Need a different size? Add the nearest pack and change the size in your basket — we price it at the same rate per unit.
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25 g — $70.90 per pack
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100 g — $204.00 per pack
Need a different quantity or pack?
Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | White to off-white crystalline powder |
| Melting Point | 109°C - 113°C |
| Water | ≤ 5% |
| Assay | ≥99% |
| Residue on Ignition | ≤ 0.8% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Transport Class | 6.1 |
| Packing Group | III |
| Acidity | Acid |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Vapour Pressure | 0.0000556 mmHg |
Source: PubChem CID 11107 (Haz-Map)
Identification
| Property | Value |
|---|---|
| SKU | 25579154 |
| CAS Number | 553-26-4 |
| IUPAC Name | 4-pyridin-4-ylpyridine |
| EC Number | 209-036-3 |
| Molecular Formula | C10H8N2 |
| Molecular Weight | 156.18 |
| Exact Mass | 156.0687 |
| SMILES | C1=CN=CC=C1C2=CC=NC=C2 |
| InChIKey | MWVTWFVJZLCBMC-UHFFFAOYSA-N |
| InChI | InChI=1S/C10H8N2/c1-5-11-6-2-9(1)10-3-7-12-8-4-10/h1-8H |
| PubChem CID | 11107 |
| UN Number | UN2811 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 29333992 |
| Tariff Code | 2933399990 |
Safety & GHS
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Toxic
GHS06
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Hazardous to the Environment
GHS09
Hazard statements
- H301 Toxic if swallowed
- H311 Toxic in contact with skin
- H411 Toxic to aquatic life with long lasting effects
Precautionary statements
- P260 Do not breathe dust/fume/gas/mist/vapours/spray
- P273 Avoid release to the environment
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P301+310 IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician
- P501 Dispose of contents/container to an approved waste disposal plant
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
- 4-(4-Pyridyl)pyridine
- 4-pyridin-4-ylpyridine
- 4,4-Bipyridin
- 4,4'-Bipyridine
- 4,4'-Bipyridyl
- 4,4'-bpy
- 4,4'-Dipyridine
- 4,4'-Dipyridyl hydrate
- gamma,gamma'-Bipyridyl
- gamma,gamma'-Dipyridyl
Frequently asked questions
What is 4,4'-dipyridyl commonly used for?
4,4'-Dipyridyl is primarily used as a ligand in coordination chemistry, a reagent in organic synthesis, and in the preparation of metal complexes for catalytic applications.
What is the chemical formula and molecular weight of 4,4'-dipyridyl?
The chemical formula is **C10H8N2**, and the molecular weight is **156.18 g/mol**.
What safety classification does 4,4'-dipyridyl fall under?
The product is classified with the **signal word 'Danger'** due to its hazardous properties.
How should 4,4'-dipyridyl be stored?
Store at **ambient temperature** in a tightly sealed container, away from moisture and incompatible substances.
Does Molekula supply 4,4'-dipyridyl in bulk quantities?
Yes, Molekula can supply 4,4'-dipyridyl in bulk, with quantities tailored to your requirements—please contact us for details.
What documentation is provided with an order of 4,4'-dipyridyl?
Each order includes a **Certificate of Analysis (CoA)**, **Material Safety Data Sheet (MSDS)**, and **batch-specific documentation** for traceability.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.