2,4,6-Trichlorophenol

2,4,6-Trichlorophenol, also known as TCP, phenaclor, Dowicide 2S, Dowcide 2S, omal, is a chlorinated phenol that has been used as a fungicide, herbicide, insecticide, antiseptic, defoliant, and glue preservative. It is a clear to yellowish crystalline solid with a strong, phenolic odor. It decomposes on heating to produce toxic and corrosive fumes including hydrogen chloride and chlorine.

2,4,6-Trichlorophenol
Names
Preferred IUPAC name
2,4,6-Trichlorophenol
Identifiers
3D model (JSmol)
776729
ChEBI
ChEMBL
ChemSpider
ECHA InfoCard 100.001.633
EC Number
  • 201-795-9
3766
KEGG
PubChem CID
RTECS number
  • SN1575000
UNII
UN number 2020
  • InChI=1S/C6H3Cl3O/c7-3-1-4(8)6(10)5(9)2-3/h1-2,10H
    Key: LINPIYWFGCPVIE-UHFFFAOYSA-N
SMILES
  • OC1=C(C=C(C=C1Cl)Cl)Cl
Properties
C6H2Cl3OH/C6H3Cl3O
Molar mass 197.45 g/mol
Appearance yellow-whitish lumps or powder
Density 1.4901 g/cm3 at 75 °C
Melting point 69.5 °C (157.1 °F; 342.6 K)
Boiling point 249 °C (480 °F; 522 K)
0.069 g/100 g H2O
Hazards
GHS labelling:
Warning
H302, H315, H319, H351, H410
P201, P202, P264, P270, P273, P280, P281, P301+P312, P302+P352, P305+P351+P338, P308+P313, P321, P330, P332+P313, P337+P313, P362, P391, P405, P501
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references
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