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quintozene

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EntityQ418683· pop 12· linked from 19 articles

quintozene

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Also known as PCNB, pentachlornitrobenzol, PKhNC, 2,3,4,5,6-pentachloronitrobenzene, nitropentachlorobenzene, Pentachloronitrobenzene

Pentachloronitrobenzene, typically abbreviated PCNB, is a registered fungicide formally derived from nitrobenzene. It is a off-white to yellow crystalline solid with a musty odor.

Chemical data

Formula
C6Cl5NO2
Molecular weight
295.3 g/mol
IUPAC name
1,2,3,4,5-pentachloro-6-nitrobenzene
SMILES
C1(=C(C(=C(C(=C1Cl)Cl)Cl)Cl)Cl)[N+](=O)[O-]
InChIKey
LKPLKUMXSAEKID-UHFFFAOYSA-N
XLogP
4.2
Polar surface area
45.8 Ų
H-bond donors
0
H-bond acceptors
2
Formal charge
0

via PubChem

Drug data · ChEMBL

Molecule type
Small molecule

via ChEMBL · EBI

Wikidata facts

Mass
292.83716663999996
Show 3 more facts
chemical formula
C₆Cl₅NO₂
canonical SMILES
C1(=C(C(=C(C(=C1Cl)Cl)Cl)Cl)Cl)[N+](=O)[O-]
Commons category
Pentachloronitrobenzene
Sources (2)

via Wikidata · CC0

~3 min read

Encyclopedic overview

6 sections
Contents
  • Preparation
  • Main reactions
  • Applications
  • Regulation
  • References
  • Bibliography

Pentachloronitrobenzene, typically abbreviated PCNB, is a registered fungicide formally derived from nitrobenzene. It is a off-white to yellow crystalline solid with a musty odor.

==Preparation== PCNB was originally synthesized in the laboratory in 1868. It was introduced to the agricultural world in the 1930s in Germany by Bayer AG as a substitute to mercurial pesticides. PCNB is prepared by chlorination of nitrobenzene at 60–70 °C in chlorosulfuric acid, with iodine as a catalyst. It can also be produced by the nitration of chlorinated benzenes. A side product of the synthesis of PCNB is hexachlorobenzene (HCB), which is considered as hazardous as PCNB. 5 Cl2 + C6H5NO2 → C6Cl5NO2 + 5 HCl

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