2,4,5-Trichlorophenol

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2,4,5-Trichlorophenol (TCP) is an organochloride with the molecular formula C6H3Cl3O. It has been used as a fungicide and herbicide.[2] Precursor chemical used in the production of 2,4,5-Trichlorophenoxyacetic acid (2,4,5-T) and hexachlorophene involves the intermediate production of 2,4,5-trichlorophenol (TCP) and the formation of 2,3,7,8-Tetrachlorodibenzodioxin (TCDD, commonly referred to simply as dioxin) as an unwanted by-product. In the course of purifying the hexachlorophene, still bottom wastes were created with concentrated levels of TCP and dioxin.

2,4,5-Trichlorophenol
Names
Preferred IUPAC name
2,4,5-Trichlorophenol
Other names
Dowicide 2, Collunosol
Identifiers
3D model (JSmol)
607569
ChEBI
ChEMBL
ChemSpider
ECHA InfoCard 100.002.244 Edit this at Wikidata
EC Number
  • 202-467-8
102425
KEGG
RTECS number
  • SN1400000
UNII
UN number 2020
  • InChI=1S/C6H3Cl3O/c7-3-1-5(9)6(10)2-4(3)8/h1-2,10H
    Key: LHJGJYXLEPZJPM-UHFFFAOYSA-N
  • C1=C(C(=CC(=C1Cl)Cl)Cl)O
Properties
C6H3Cl3O
Molar mass 197.44 g·mol−1
Melting point 68.4 °C (155.1 °F; 341.5 K)[1]
Boiling point 262 °C (504 °F; 535 K)[1]
Hazards
GHS labelling:
GHS07: Exclamation markGHS09: Environmental hazard
Warning
H302, H315, H319, H410
P264, P270, P273, P280, P301+P312, P302+P352, P305+P351+P338, P321, P330, P332+P313, P337+P313, P362, P391, P501
Flash point 133 °C (271 °F; 406 K) cc
Related compounds
Related compounds
2,4-Dichlorophenol, 1,2,4-Trichlorobenzene, 2,4,6-Trichlorophenol
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

References

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  1. ^ a b Haynes, p. 3.522
  2. ^ "Hazard Summary – 2,4,5-Trichlorophenol" (PDF). United States Environmental Protection Agency. Retrieved 30 November 2020.

Cited sources

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See also

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