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: 2026-05-28 05:14:43

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.