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366-18-7

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Identification

Name
2,2'-Dipyridyl
CAS
366-18-7
Synonyms
2,2'-BIPYRIDINE
2,2-BIPYRIDINE
2,2'-BIPYRIDYL
2,2-BIPYRIDYL
2,2'-DIPYRIDYL
2-PYRIDIN-2-YLPYRIDINE
A,A'-DIPYRIDYL
ALPHA, ALPHA'-BIPYRIDINE
ALPHA, ALPHA'-BIPYRIDYL
ALPHA,ALPHA'-DIPYRIDYL
BIPY
BIPYRIDINE(2,2'-)
CI-588
'LGC' (1607)
,’-Dipyridyl
2-(2-Pyridyl)pyridine
2,2’-bipyridin
2,2’-dipyridine
2,2'-Bipyridin
2,2'-Dipyridine
EINECS(EC#)
206-674-4
Molecular Formula
C10H8N2
MDL Number
MFCD00006212
Molecular Weight
156.18
MOL File
366-18-7.mol

Chemical Properties

Appearance
White crystalline powder
Melting point 
70-73 °C(lit.)

mp 
70-73 °C(lit.)

Boiling point 
273 °C(lit.)

bp 
273 °C(lit.)

density 
1.1668 (rough estimate)
refractive index 
1.4820 (estimate)
Fp 
121 °C
storage temp. 
Store at RT.
solubility 
5.5g/l
form 
Crystalline Powder
pka
pK1:-0.52(+2);pK2:4.352(+1) (20°C)
color 
White to almost white
Stability:
Stable. Incompatible with strong oxidizing agents, most common metals. May be light sensitive.
PH
7.5 (5g/l, H2O, 25℃)
Odor
Characteristic odour
Water Solubility 
5.5 g/L 22 ºC
Merck 
14,3347
Detection Methods
GC,HPLC
BRN 
113089
InChIKey
ROFVEXUMMXZLPA-UHFFFAOYSA-N
CAS DataBase Reference
366-18-7(CAS DataBase Reference)
NIST Chemistry Reference
2,2'-Bipyridine(366-18-7)
EPA Substance Registry System
366-18-7(EPA Substance)

Safety Data

Hazard Codes 
T,Xi
Risk Statements 
R25:Toxic if swallowed.
R36/37/38:Irritating to eyes, respiratory system and skin .
R20/21:Harmful by inhalation and in contact with skin .
R23/24/25:Toxic by inhalation, in contact with skin and if swallowed .
Safety Statements 
S36/37:Wear suitable protective clothing and gloves .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) .
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection .
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
RIDADR 
UN 2811 6.1/PG 3

WGK Germany 
3

RTECS 
DW1750000


8
Hazard Note 
Irritant
TSCA 
Yes
HazardClass 
6.1
PackingGroup 
III
HS Code 
29333999
Hazardous Substances Data
366-18-7(Hazardous Substances Data)
Toxicity
LD50 i.p. in mice: 200 mg/kg (Grady)

Raw materials And Preparation Products

Material Safety Data Sheet(MSDS)

Hazard Information

Chemical Properties
White crystalline powder
Uses
A high-affinity chelator of iron
Uses
As a reagent for the determination of iron.
Definition
ChEBI: A bipyridine in which the two pyridine moieties are linked by a bond between positions C-2 and C-2'.
Synthesis Reference(s)
Journal of the American Chemical Society, 100, p. 5567, 1978 DOI: 10.1021/ja00485a053
Synthesis, p. 564, 1986 DOI: 10.1055/s-1986-31705
Safety Profile
Poison by ingestion,subcutaneous, and intraperitoneal routes. Experimentalteratogenic data. Questionable carcinogen withexperimental tumorigenic data. Mutation data reported.When heated to decomposition it emits toxic fumes ofNOx.
Purification Methods
2,2'-Bipyridyl crystallises from hexane, or EtOH, or (after charcoal treatment of a CHCl3 solution) from pet ether. Also, it precipitates from a concentrated solution in EtOH by addition of H2O. Dry it in a vacuum over P2O5. It can be further purified by chromatography on Al2O3 or by sublimation. UV (EtOH): at 280nm (log 4.13). max [Airoldi et al. J Chem Soc, Dalton Trans 1913 1986, Beilstein 23 H 199, 23/8 V 16.]

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