| 2,4,6-Tribromoanisole[1] | |
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1,3,5-Tribromo-2-methoxybenzene |
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Other names
Tribromoanisole; TBA |
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| Identifiers | |
| CAS number | 607-99-8 |
| PubChem | 11839 |
| ChemSpider | 11345  |
| UNII | DO7M3M4LX5 |
| ChEBI | CHEBI:38703 |
| Jmol-3D images | Image 1 Image 2 |
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| Properties | |
| Molecular formula | C7H5Br3O |
| Molar mass | 344.826 |
| Melting point |
84-88 °C |
| Boiling point |
297-299 °C |
 (verify) (what is:  / ?)Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) |
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| Infobox references | |
2,4,6-Tribromoanisole (TBA) is a chemical compound that is a brominated derivative of anisole. It is one of the chemicals responsible for cork taint.[2]
Tribromoanisole is a fungal metabolite of 2,4,6-tribromophenol, which is used as a fungicide in place of the banned pentachlorophenol. It can be found in minute traces on packaging materials stored in the presence of fiberboard treated with 2,4,6-tribromophenol. Traces of TBA cause mustiness in packaged foods.[3]
Tribromoanisole is usually produced when naturally occurring airborne fungi and/or bacteria (usually Aspergillus sp., Penicillium sp., Actinomycetes, Botrytis cinerea, Rhizobium sp., or Streptomyces) are presented with brominated phenolic compounds, which they then convert into bromoanisole derivatives. The bromophenols can originate from various contaminants including those found in some pesticides and wood preservatives. They can also migrate from other objects such as shipping pallets treated by bromophenols.
Tribromoanisole has a very low odor detection threshold. It is 0.08-0.3 parts per trillion (ppt) in water and 2-6 ppt in wine[4] (or 3.4-7.9 ng/l[5]) so even very minute amounts can be detected. It causes unpleasant earthy, musty and moldy aromas.
Consumer product recalls [link]
In recent years, there have been several events in which consumer products were recalled due to odors caused by tribromoanisole on product packaging. In 2010 and 2011, Johnson & Johnson voluntarily recalled some over-the-counter products including Tylenol due to an odor caused by tribromoanisole.[6][7] In this case, 2,4,6-tribromophenol was used to treat wooden pallets on which product packaging materials were transported and stored.[6] In 2010 and in 2011, Pfizer recalled bottles of Lipitor after reports of an odor linked to the packaging bottles.[8] Pfizer said the bottles were supplied by a third-party manufacturer and determined the cause to be exposure of the bottles to low levels of tribromoanisole as they were shipped or stored.[9]
See also [link]
References [link]
- ^ 2,4,6-Tribromoanisole at Sigma-Aldrich
- ^ Chatonnet P, Bonnet S, Boutou S, Labadie MD (2004). "Identification and responsibility of 2,4,6-tribromoanisole in musty, corked odors in wine". J Agric Food Chem 52 (5): 1255–1262. DOI:10.1021/jf030632f. PMID 14995130.
- ^ Frank B. Whitfield, Jodie L. Hill, and Kevin J. Shaw (1997). "2,4,6-Tribromoanisole: a Potential Cause of Mustiness in Packaged Food". J. Agric. Food Chem. 45 (3): 889–893. DOI:10.1021/jf960587u.
- ^ https://www.restek.com/Technical-Resources/Technical-Library/General-Interest/general_A031
- ^ https://www.wawgg.org/files/documents/THK_&_Richard_Larsen_Tasting_Room_Training_power_point.pdf
- ^ a b Tylenol Recall Expands, WebMD Health News, January 18, 2010
- ^ McNeil Consumer Healthcare Announces Voluntary Recall Of One Product Lot Of TYLENOL® Extra Strength Caplets 225 Count Distributed In The U.S.
- ^ 38,000 more bottles of Lipitor recalled over odor complaints, CNN.com, October 30, 2010
- ^ Lipitor (atorvastatin) 40 mg: Recall Specific Bottles, drugs.com, Dec 23, 2010
https://wn.com/2,4,6-Tribromoanisole
To be announced
To be announced (TBA), to be confirmed (TBC), and to be determined (or to be decided, TBD) are placeholder terms used very broadly in event planning to indicate that although something is scheduled or expected to happen, a particular aspect of that remains to be arranged or confirmed.
TBA vs. TBC vs. TBD
These phrases are similar, but may be used for different degrees of indeterminacy:
Other similar phrases sometimes used to convey the same meaning, and using the same abbreviations, include "to be ascertained", "to be arranged", "to be advised", "to be adjudicated", "to be done", "to be decided", and "to be declared".
Use of the abbreviation "TBA" is formally reported in a reference work at least as early as 1955, and "TBD" is similarly reported as early as 1967.
Trockenbeerenauslese
Trockenbeerenauslese (literal meaning: "dried berries selection") is a German language wine term for a medium to full body dessert wine.
Trockenbeerenauslese is the highest in sugar content in the Prädikatswein category of the Austrian and German wine classifications.Trockenbeerenauslese wines, often called "TBA" for short, are made from individually selected grapes affected by noble rot, i.e. "botrytized" grapes.
This means that the grapes have been individually picked and are shrivelled with noble rot, often to the point of appearing like a raisin. They are therefore very sweet and have an intensely rich flavor, frequently with a lot of caramel and honey bouquet, stone fruit notes such as apricot, and distinctive aroma of the noble rot. The finest examples are made from the Riesling grape, as this retains plenty of acidity even at the extreme ripeness. Other grape varieties are also used, such as Scheurebe, Ortega, Welschriesling, Chardonnay, and Gewürztraminer and many are more prone to noble rot than Riesling since they ripen earlier.
Emin
Emin may refer to:
As a name
Places
Other uses
See also
Emin (surname)
Emin can be a surname, usually of Turkish and Azerbaijani origin.
Notable people with the surname include:
See also
Emin (given name)
Emin is the Turkish and Azerbaijani version of the Arabic masculine given name Amin (أمين).
Notable people with the name include:
