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  2. 2,4,5-Trichlorophenoxyacetic acid - Wikipedia

    en.wikipedia.org/wiki/2,4,5-Trichlorophenoxy...

    2,4,5-Trichlorophenoxyacetic acid (also known as 2,4,5-T ), a synthetic auxin, is a chlorophenoxy acetic acid herbicide used to defoliate broad-leafed plants. It was developed in the late 1940s, synthesized by reaction of 2,4,5-Trichlorophenol and chloroacetic acid. It was widely used in the agricultural industry until being phased out ...

  3. Tetramethyl acetyloctahydronaphthalenes - Wikipedia

    en.wikipedia.org/wiki/Tetramethyl...

    Tetramethyl acetyloctahydronaphthalenes (International Nomenclature for Cosmetic Ingredients name) (1-(1,2,3,4,5,6,7,8-ottaidro-2,3,8,8,-tetrametil-2-naftil)etan-1-one) is a synthetic ketone fragrance also known as OTNE (octahydrotetramethyl acetophenone) and by other commercial trade names such as: Iso E Super, Iso Gamma Super, Anthamber, Amber Fleur, Boisvelone, Iso Ambois, Amberlan, Iso ...

  4. Polychlorinated dibenzodioxins - Wikipedia

    en.wikipedia.org/wiki/Polychlorinated_dibenzodioxins

    It was a mixture of 2,4,5-T and 2,4-D. The 2,4,5-T used was contaminated with 2,3,7,8-tetrachlorodibenzodioxin (TCDD), an extremely toxic dioxin compound . During the Vietnam war, between 1962 and 1971, the United States military sprayed 20,000,000 U.S. gallons (76,000,000 L) of chemical herbicides and defoliants in Vietnam, eastern Laos and ...

  5. Tetramethylsilane - Wikipedia

    en.wikipedia.org/wiki/Tetramethylsilane

    In the formation of silicon carbide, carbosilanes, such as 1,3,5,7-tetramethyl-1,3,5,7-tetrasilaadamantane, are observed as intermediates. Uses in NMR spectroscopy. Tetramethylsilane is the accepted internal standard for calibrating chemical shift for 1 H, 13 C and 29 Si NMR spectroscopy in organic solvents (where TMS is soluble).

  6. 2,2,5,5-Tetramethyltetrahydrofuran - Wikipedia

    en.wikipedia.org/wiki/2,2,5,5-Tetramethyltetra...

    2,2,5,5-tetramethyltetrahydrofuran (TMTHF) or 2,2,5,5-tetramethyloxolane (TMO) is a heterocyclic compound with the formula C. 8H. 16O, or (CH 3) 2 (C (CH 2) 2 OC) (CH 3) 2. It can be seen as derivative of tetrahydrofuran (oxolane) with four methyl groups replacing four hydrogen atoms on each of the carbon atoms in the ring that are adjacent to ...

  7. List of isomers of tetradecane - Wikipedia

    en.wikipedia.org/wiki/List_of_isomers_of_tetradecane

    2,2,3,3-Tetramethyldecane; 2,2,3,4-Tetramethyldecane; 2,2,3,5-Tetramethyldecane; 2,2,3,6-Tetramethyldecane; 2,2,3,7-Tetramethyldecane; 2,2,3,8-Tetramethyldecane

  8. US breeder Envigo pleads guilty for mistreating beagles, gets ...

    www.aol.com/news/us-breeder-envigo-pleads-guilty...

    WASHINGTON (Reuters) -Research animal breeder Envigo pleaded guilty in Virginia on Monday to federal animal welfare and environmental crimes, resolving a two-year U.S. Justice Department probe ...

  9. Tetramethylbenzene - Wikipedia

    en.wikipedia.org/wiki/Tetramethylbenzene

    Tetramethylbenzene. The tetramethylbenzenes constitute a group of substances of aromatic hydrocarbons, which structure consists of a benzene ring with four methyl groups (–CH 3) as a substituent. [1] Through their different arrangement, they form three structural isomers with the molecular formula C 10 H 14.