2,4,5-T


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2,4,5-T

(organic chemistry)
References in periodicals archive ?
If 2,4-D and 2,4,5-T were so toxic, one would assume the most exposed cohort, members of U.
The VA and chemical manufacturers decided it was less expensive to pay off the relative few who claimed harm than it would be to fight in court, and not to fight banning 2,4,5-T.
Dow, along with other chemical manufacturers, had acquired the right to produce 2,4-D and 2,4,5-T at the end of the Second World War.
In 1970 came an embarrassing admission from Dow vice-president Julius Johnson, testifying before a House Subcommittee on the "Effects of 2,4,5-T on Man and the Environment," chaired by Michigan Senator Philip Hart.
The EPA was on the verge of canceling the 2,4,5-T product registration because of health concerns, while at the same time the Veterans Administration was engineering its now well-documented coverup of Agent Orange health effects.
Two chemicals were developed as a result of those early efforts -- 2,4,D and 2,4,5-T.
2,4-D has other dioxins that have been considered less toxic than the 2,4,5-T contaminants.
Without directly addressing the considerable "margin of safety" Newton wants to associate with exposure to pesticides such as 2,4,-D and 2,4,5-T, it is interesting that the only mechanism of toxicity his commentary endeavors to consider worthy of our concern is that of acute toxicity.
In September 1992, about 25 years after the 2,4,5-T herbicide production had ceased, blood sampling and analysis of about 60 men, women, and children from this factory and the city of Ufa took place.
In a paper given at the same meeting, Lennart Hardell reported on fat biopsies taken from seven such workers who had presumably received brief (two-week to 10-month) but substantial exposures to 2,4,5-T between 20 and 30 years ago, and who now have sarcomas.
These herbicides were contaminated with minute amounts of 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD, also known as dioxin), a by-product of the manufacturing process for 2,4,5-T.