4,4'-Dipyridyl dihydrochloride
- CAS NO.：27926-72-3
- Empirical Formula: C10H10Cl2N2
- Molecular Weight: 229.11
- MDL number: MFCD00012824
- EINECS: 248-732-1
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-11-04 17:04:09
What is 4,4'-Dipyridyl dihydrochloride?
The Uses of 4,4'-Dipyridyl dihydrochloride
is used in manufacturing of Nitrogen-containing Carbon alloy having high Oxygen-redaction activity for fuel-cell catalyst.
Purification Methods
Purify viologen by precipitation on adding excess of acetone to a concentrated solution of it in aqueous MeOH. It has also been recrystallised several times from MeOH or iso-propanol and dried at 70o under vacuum for 24hours [Prasad et al. J Am Chem Soc 108 5135 1986], and recrystallised three times from MeOH/isopropanol [Stramel & Thomas J Chem Soc, Faraday Trans 82 799 1986, Michaelis & Hill J Am Chem Soc 55 1481 1933, Tilford et al. J Am Chem Soc 70 4005 1948]. [Beilstein 23 I 49.]
Properties of 4,4'-Dipyridyl dihydrochloride
| Melting point: | >300 °C(lit.) |
| color | Beige/cream |
Safety information for 4,4'-Dipyridyl dihydrochloride
| Signal word | Danger |
| Pictogram(s) |
 Skull and Crossbones Acute Toxicity GHS06 |
| GHS Hazard Statements |
H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation |
| Precautionary Statement Codes |
P260:Do not breathe dust/fume/gas/mist/vapours/spray. P271:Use only outdoors or in a well-ventilated area. P280:Wear protective gloves/protective clothing/eye protection/face protection. |
Computed Descriptors for 4,4'-Dipyridyl dihydrochloride
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![PARAQUAT DICHLORIDE HYDRATE, [RING-14C(U)]](https://img.chemicalbook.in/StructureFile/ChemBookStructure5/GIF/CB2193061.gif)
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