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Description

Dibenzofuran · CAS 132-64-9 · C12H8O. UNII 8U54U639VI. Boiling Point: 549 °F at 760 mmHg (NTP, 1992); Boiling Point: 287 °C @ 760 mm Hg; Boiling Point: 287 °C @760 [mm Hg].

Identification

CAS Registry Number	132-64-9
PubChem CID	568
Molecular formula	C12H8O
IUPAC name	dibenzofuran
UNII (FDA)	8U54U639VI

Computed Descriptors

Molecular Weight	168.19
XLogP3	4.1
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	1
Rotatable Bond Count	0
Exact Mass	168.057514874
Monoisotopic Mass	168.057514874
Topological Polar Surface Area	13.1
Heavy Atom Count	13
Formal Charge	0

Physical & Chemical Properties

Boiling Point	549 °F at 760 mmHg (NTP, 1992)
Boiling Point	287 °C @ 760 mm Hg
Boiling Point	287 °C @760 [mm Hg]
Melting Point	187 to 189 °F (NTP, 1992)
Melting Point	86.5 °C
Solubility	In water, 3.1 mg/l @ 25 °C
Density	1.0886 @ 99 °C
Density	1.0866 @ 99°C
Vapor Density	5.8 (Air= 1)
Vapor Pressure	0.00248 [mmHg]

Physical description & handling notes

• Dibenzofuran is a colorless white crystalline solid. (NTP, 1992)
• White solid; [HSDB] White crystalline powder; [MSDSonline]
• LEAF OR NEEDLES FROM ALCOHOL
• WHITE CRYSTALS
• Crystalline solid
• Weak, characteristic odor

Regulatory Status

GHS notification summary	13.6% (3 / 22)

GHS Hazard Classification

GHS notification summary	13.6% (3 / 22)
Reported hazard statements	H411 (81.8%)

Documented Uses

• No information was located regarding the uses of dibenzofuran.
• Used as a component of heat-transfer oils (with biphenyl); suitable as a carrier for dyeing and printing textiles (combined with methylnaphthalenes); [HSDB] Used as insecticide; [Hawley]
• Textiles (Printing, Dyeing, or Finishing) [Category: Industry]
• ... Together with biphenyl, is a component of heat-transfer oils. When combined with methylnaphthalenes, it is suitable as a carrier for dyeing and printing textiles. ... Derivatives serve as intermediates for naphtol AS and chromium complex dyes.
• Dibenzofuran is present in coal tar at a level of about 1%. It is recovered from a wash oil fraction that boils between 275 and 290 °C (containing about 30% dibenzofuran). A redistillation step is largely successful in separating dibenzofuran from acenaphthene, which boils 7 °C lower. The technically pure compound is obtained through crystallization of the redistilled fraction.
• Fluorene and acenaphthalene (indicated by a higher melting point than 82.8 °C)

Synonyms

dibenzofuran; 132-64-9; Dibenzo[b,d]furan; diphenylene oxide; 2,2'-Biphenylene oxide; 2,2'-Biphenylylene oxide; Dibenzo(b,d)furan; Dibenzol(b,d)furan; DTXSID2021993; (1,1'-Biphenyl)-2,2'-diyl oxide; [1,1'-Biphenyl]-2,2'-diyl oxide; 8U54U639VI; NSC-1245; DTXCID801993; CHEBI:28145; RefChem:132850

Frequently Asked Questions

What are the CAS number and molecular formula of Dibenzofuran?

CAS 132-64-9; molecular formula C12H8O; molecular weight — g/mol.

What other names is Dibenzofuran known by?

dibenzofuran, 132-64-9, Dibenzo[b,d]furan, diphenylene oxide, 2,2'-Biphenylene oxide, 2,2'-Biphenylylene oxide.

Is Dibenzofuran classified as hazardous?

13.6% of GHS notifications report no hazard classification (3 of 22).

What are the key physical properties of Dibenzofuran?

Boiling Point: 549 °F at 760 mmHg (NTP, 1992); Boiling Point: 287 °C @ 760 mm Hg; Boiling Point: 287 °C @760 [mm Hg]; Melting Point: 187 to 189 °F (NTP, 1992).

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.