2,2'-dipyridine

Description

2,2'-dipyridine · CAS 366-18-7 · C10H8N2. UNII 551W113ZEP. Boiling Point: 273.5 °C; Boiling Point: 272-273 °C; Melting Point: 72 °C.

Identification

CAS Registry Number	366-18-7
PubChem CID	1474
Molecular formula	C10H8N2
IUPAC name	2-pyridin-2-ylpyridine
UNII (FDA)	551W113ZEP

Computed Descriptors

Molecular Weight	156.18
XLogP3	1.7
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	2
Rotatable Bond Count	1
Exact Mass	156.068748264
Monoisotopic Mass	156.068748264
Topological Polar Surface Area	25.8
Heavy Atom Count	12
Formal Charge	0

Physical & Chemical Properties

Boiling Point	273.5 °C
Boiling Point	272-273 °C
Melting Point	72 °C
Melting Point	70 °C
Flash Point	121 °C
Solubility	In water, 5.93X10+3 mg/l @ 25 °C
Vapor Pressure	0.000013 [mmHg]
LogP	log Kow= 1.50
LogP	1.67
Ionization Efficiency	3.84

Physical description & handling notes

• White solid; [Hawley] White or yellow crystalline solid; [MSDSonline]
• WHITE CRYSTALS.
• White crystals
• Crystals from dilute alcohol
• PRISMS FROM PETROLEUM ETHER
• Very sol in alcohol, ether, and benzene

Regulatory Status

GHS notification summary	1.5% (10 / 659)

GHS Hazard Classification

GHS notification summary	1.5% (10 / 659)
Reported hazard statements	H301, H311 (34.9%), H312 (41%), H319 (12.4%), H412 (32.9%), H371, H373

Documented Uses

• Used as an iron chelating agent, indicator for photometric determination of metals (Ag, Cd, Cu, Fe, and Mo), and chemical intermediate in the production of the herbicide diquat; [HSDB] Formed as a pyrolysis product in tobacco smoke and also from the degradation of the herbicide paraquat; [Reference #1]
• Smoking cigarettes [Category: Food & Drugs]
• Indicator for photometric determination of Ag, Cd, Cu, Fe, and Mo
• Important chemical intermediate in the production of the herbicide diquat; the quaternary salt is used as a contact herbicide.
• Dehydrogenation of pyridine with nickel or other metal catalysts gives 2,2'-bipyridyl.
• Raney nickel reduction /of pyridine/ gives 2,2'-bipyridine.

Synonyms

2,2'-BIPYRIDINE; 366-18-7; 2,2'-Dipyridyl; 2,2'-Bipyridyl; Bipyridine; 2,2'-Dipyridine; 2-(2-Pyridyl)pyridine; 2,2'-Bipyridin; 2,2-bipyridyl; alpha,alpha'-Dipyridyl; alpha,alpha'-Bipyridyl; alpha,alpha'-Dipyridine; 2-pyridin-2-ylpyridine; DTXSID9040635; 2,2-Bipyridine; 2,2 Bipyridyl

Frequently Asked Questions

What are the CAS number and molecular formula of 2,2'-dipyridine?

CAS 366-18-7; molecular formula C10H8N2; molecular weight — g/mol.

What other names is 2,2'-dipyridine known by?

2,2'-BIPYRIDINE, 366-18-7, 2,2'-Dipyridyl, 2,2'-Bipyridyl, Bipyridine, 2,2'-Dipyridine.

Is 2,2'-dipyridine classified as hazardous?

1.5% of GHS notifications report no hazard classification (10 of 659).

What are the key physical properties of 2,2'-dipyridine?

Boiling Point: 273.5 °C; Boiling Point: 272-273 °C; Melting Point: 72 °C; Melting Point: 70 °C.

Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.