The two most common chemical cousins _ gamma butyrolactone, or GBL, and 1, 4 butanediol _ were sold under brand names like Enliven, Verve, Renewtrient and NRG3.
42.
The VP test uses alpha-naphthol and potassium hydroxide to test for the presence of acetylmethylcarbinol ( acetoin ), an intermediate of the 2, 3-butanediol fermentation pathway.
43.
Nationwide, butanediol _ or tetramethylene glycol _ was responsible for six deaths in the past year and a half, according to the Food and Drug Administration division that oversees dietary supplements.
44.
It's unclear how many are specifically related to butanediol _ except in rare cases where the bottle is brought in with the patient _ because the compound is metabolized into GHB.
45.
Conventional polyester polyols are based on virgin raw materials and are manufactured by the direct polyesterification of high-purity diacids and glycols, such as adipic acid and 1, 4-butanediol.
46.
Joshua Parks, a 23-year-old bodybuilder from Isleton, died on Independence Day in 1999 after a year of ingesting various butanediol supplements he bought in a fitness store in Sacramento.
47.
"It's amazing what they're getting away with, " said Dyer, who works out of San Francisco General Hospital and saw her first butanediol overdose in 1997.
48.
I have no recollection of it, " he says, adding that it wasn't real GHB he was on, but 1, 4 butanediol _ a drug often sold as GHB.
49.
Barin Corp . of Wilmington, Del ., the maker of Rejoov, appears to have halted Internet sales of Rejoov and its only other product, Somax, which has a higher butanediol concentration.
50.
"It sounds stupid, " said Dr . Stephen Smith, who co-authored a study on butanediol abuse published in the Jan . 11 issue of the New England Journal of Medicine.
