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1,4-dichlorobenzene

Structure via PubChem · Public domain (PubChem)

EntityQ161529· pop 25· linked from 252 articles

1,4-dichlorobenzene

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Also known as p-DCB, PARA, PDCB, Paradichlorbenzol, p-chlorophenyl chloride, PDB, p-dichlorobenzene, para-dichlorobenzene

1,4-Dichlorobenzene (1,4-DCB, p-DCB, or para-dichlorobenzene, sometimes abbreviated as PDCB or para) is an aryl chloride and isomer of dichlorobenzene with the formula C6H4Cl2. This colorless solid has a strong odor. The molecule consists of a benzene ring with two chlorine atoms (replacing hydrogen atoms) on opposing sites of the ring.

Chemical data

Formula
C6H4Cl2
Molecular weight
147 g/mol
IUPAC name
1,4-dichlorobenzene
SMILES
C1=CC(=CC=C1Cl)Cl
InChIKey
OCJBOOLMMGQPQU-UHFFFAOYSA-N
XLogP
3.4
Polar surface area
0 Ų
H-bond donors
0
H-bond acceptors
0
Formal charge
0

via PubChem

Drug data · ChEMBL

Molecule type
Small molecule

via ChEMBL · EBI

Research

476 papers

via PubMed

Wikidata facts

Subclass of
dichlorobenzene
Mass
145.969
Has use
mothball
Show 18 more facts
electric dipole moment
0
boiling point
345
chemical formula
C₆H₄Cl₂
NIOSH Pocket Guide ID
0190
density
1.25
immediately dangerous to life or health
901.5
melting point
52.7
vapor pressure
1.3
flash point
150
solubility
0.008
lower flammable limit
2.5
ionization energy
8.89
time-weighted average exposure limit
450
ceiling exposure limit
0
canonical SMILES
C1=CC(=CC=C1Cl)Cl
subject has role
metabolite
Commons category
1,4-Dichlorobenzene
found in taxon
Lavandula
Sources (4)

via Wikidata · CC0

~4 min read

Encyclopedic overview

11 sections
Contents
  • Production
  • Uses
  • Disinfectant, deodorant, and pesticide
  • Precursor to other chemicals
  • As ceruminolytic agent
  • Recreational Use
  • Environmental and health effects
  • Biodegradation
  • See also
  • References
  • External links

1,4-Dichlorobenzene (1,4-DCB, p-DCB, or para-dichlorobenzene, sometimes abbreviated as PDCB or para) is an aryl chloride and isomer of dichlorobenzene with the formula C6H4Cl2. This colorless solid has a strong odor. The molecule consists of a benzene ring with two chlorine atoms (replacing hydrogen atoms) on opposing sites of the ring.

It is used as a disinfectant, pesticide, and deodorant, most familiarly in mothballs in which it is a replacement for the more traditional naphthalene because of naphthalene's greater flammability (though both chemicals have the same NFPA 704 rating). It is also used as a precursor in the production of the chemically and thermally resistant polymer poly(p-phenylene sulfide).

Excerpted from Wikipedia’s “1,4-dichlorobenzene” article, available under the CC BY-SA 4.0 licence.

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