2,4,6-Tribromophenol

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2,4,6-Tribromophenol
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Names
Preferred IUPAC name
2,4,6-Tribromophenol
Other names
Tribromophenol; 2,4,6-TBP; TBP
Identifiers
3D model (JSmol)
ChEBI
ChEMBL
ChemSpider
DrugBank
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KEGG
UNII
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  • InChI=1S/C6H3Br3O/c7-3-1-4(8)6(10)5(9)2-3/h1-2,10H checkY
    Key: BSWWXRFVMJHFBN-UHFFFAOYSA-N checkY
  • InChI=1/C6H3Br3O/c7-3-1-4(8)6(10)5(9)2-3/h1-2,10H
    Key: BSWWXRFVMJHFBN-UHFFFAOYAF
  • Brc1cc(Br)cc(Br)c1O
Properties
C6H3Br3O
Molar mass 330.801 g·mol−1
Appearance White needles or prisms[1]
Melting point 95.5 °C (203.9 °F; 368.6 K)[1]
Boiling point 244 °C (471 °F; 517 K)[3]
286 °C[1]
Slightly soluble[1]
59-61 mg/L[2]
Hazards
GHS labelling:
GHS07: Exclamation markGHS09: Environmental hazard[4]
NFPA 704 (fire diamond)
NFPA 704 four-colored diamondHealth 2: Intense or continued but not chronic exposure could cause temporary incapacitation or possible residual injury. E.g. chloroformFlammability 0: Will not burn. E.g. waterInstability 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g. liquid nitrogenSpecial hazards (white): no code
2
0
0
Lethal dose or concentration (LD, LC):
2000 mg/kg (rat, oral)[1]
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

2,4,6-Tribromophenol (TBP) is a brominated derivative of phenol. It is used as a fungicide, as a wood preservative, and an intermediate in the preparation of flame retardants.

Production

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Although natural TBP has been identified in ocean sediments as a metabolite of marine fauna,[5] the commercial product is prepared industrially. In 2001, the production volume of TBP was estimated to be 2500 tonnes/year in Japan and 9500 tonnes/year worldwide.[2] TBP can be prepared by the controlled reaction of elemental bromine with phenol:[3]

File:2,4,6-Tribromphenol Reaktionsschemata.svg

Uses

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The predominant use of TBP is as an intermediate in the preparation of flame retardants such as brominated epoxy resins.[2] TBP is reacted with sodium hydroxide to form the sodium salt, which is used as a fungicide and wood preservative.[6][7]

Bismuth salt

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The bismuth salt is the active ingredient in Xeroform[clarification needed] dressing.[8]

Metabolism

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Microbial metabolism in products treated with TBP is known to produce 2,4,6-tribromoanisole (TBA),[9] which has a musty odor. In 2010 and 2011, Pfizer and Johnson & Johnson voluntarily recalled some products due to TBA odors from wooden pallets which were treated with TBP.[10][11][12][13]

References

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  1. ^ a b c d e "3851: Tribromophenol" in Gardner's Commercially Important Chemicals: Synonyms, Trade Names, and Properties, G. W. A. Milne (Editor), Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value)., page 632
  2. ^ a b c Concise International Chemical Assessment Document 66: 2,4,6-Tribromophenol and Other Simple Brominated Phenols, International Programme on Chemical Safety
  3. ^ a b Merck Index, 11th Edition, 9526
  4. ^ Sigma-Aldrich Co., 2,4,6-Tribromophenol. Retrieved on 2015-02-19.
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  10. ^ 38,000 more bottles of Lipitor recalled over odor complaints, CNN.com, October 30, 2010
  11. ^ Lipitor (atorvastatin) 40 mg: Recall Specific Bottles, drugs.com, Dec 23, 2010
  12. ^ Tylenol Recall Expands, WebMD Health News, January 18, 2010
  13. ^ McNeil Consumer Healthcare Announces Voluntary Recall Of One Product Lot Of TYLENOL Extra Strength Caplets 225 Count Distributed In The U.S.
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