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2,3,7,8-Tetrachlorodibenzo-p-dioxin (TCDD) is a polychlorinated dibenzo-p-dioxin (sometimes shortened, though inaccurately, to simply 'dioxin') [3] with the chemical formula C 12 H 4 Cl 4 O 2. Pure TCDD is a colorless solid with no distinguishable odor at room temperature.
Dibenzo-1,4-dioxin, also dibenzodioxin or dibenzo-p-dioxin (dibenzo-para-dioxin), is a polycyclic heterocyclic organic compound in which two benzene rings are connected by a 1,4-dioxin ring. Its molecular formula is C 12 H 8 O 2. The two oxygen atoms occupy opposite (para-) positions in the six-membered dioxin ring.
The skeletal formula and substituent numbering scheme of the parent compound dibenzo-1,4-dioxin. The structure of dibenzo-1,4-dioxin consists of two benzene rings joined by two oxygen bridges. This makes the compound an aromatic diether. The name dioxin formally refers to the central dioxygenated ring, which is stabilized by the two flanking ...
[2] [3] For general population the most important source is food of animal origin like with other dioxin-like compounds. [4] [5] [6] The most relevant congener is 2,3,4,7,8-pentachlorodibenzofuran (2,3,4,7,8-PCDF) which is more toxic and based on relative toxicity more prevalent than other PCDFs. [4]
The halflife of heptachlorodibenzo-p-dioxin is calculated to be 3.6 years. This estimation was based on the analysis of fat tissue biopsies collected with an interval of 28 months from on 14-year-old girl who for a period of about 2–3 years had been exposed to technical pentachlorophenol.
Craigslist took away eBay's board representation in 2007, the year eBay launched its Kijiji online classified ads service, saying they didn't want to share potential trade secrets with a competitor.
WASHINGTON (Reuters) -President-elect Donald Trump said on Saturday the U.S. should not be involved in the conflict in Syria, where rebel forces are threatening the government of President Bashar ...
President-elect Donald Trump plans to launch a mass deportation operation targeting millions of immigrants living in the U.S. illegally and with temporary protections once he takes office on Jan ...