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Phenolphthalein is slightly soluble in water and usually is dissolved in alcohols in experiments. It is a weak acid, which can lose H + ions in solution. The nonionized phenolphthalein molecule is colorless and the double deprotonated phenolphthalein ion is fuchsia. Further proton loss in higher pH occurs slowly and leads to a colorless form.
One of Schering-Plough's plants, in Upper Hutt, New Zealand was the largest single site for the production of veterinary vaccines in the world. [citation needed] This was primarily because New Zealand's isolation has formed a natural quarantine, leaving the country free of rabies, foot and mouth, scrapie, bovine spongiform encephalopathy, and many other livestock diseases.
The Merck Group, branded and commonly known as Merck, is a German multinational science and technology company headquartered in Darmstadt, with about 60,000 employees and a presence in 66 countries. The group includes around 250 companies; the main company is Merck KGaA in Germany. The company is divided into three business lines: Healthcare ...
Merck & Co. traces its origins to its former German parent company Merck Group, which was established by the Merck family in 1668 when Friedrich Jacob Merck purchased a drug store in Darmstadt. [ 27 ] [ 28 ] In 1827, Merck Group evolved from a pharmacy to a drug manufacturer company with the commercial manufacture of morphine . [ 29 ]
Sigma-Aldrich was created in 1975 by the merger of Sigma Chemical Company and Aldrich Chemical Company. It grew through various acquisitions until it had over 9,600 employees and was listed on the Fortune 1000. The company has two United States headquarters, in St. Louis and Burlington, MA and has operations in approximately 40 countries. [7]
(Reuters) -Merck on Wednesday agreed to buy privately held biotech EyeBio for as much as $3 billion, as it looks to diversify its portfolio of experimental drugs with treatments for eye diseases.
Merck Serono (EMD Serono in the United States and Canada) is a pharmaceutical company headquartered in Darmstadt, Germany, and a brand and division of Merck focused on biopharmaceuticals. [1] In September 2006, Merck KGaA announced its intent to purchase the majority of Serono shares from Ernesto Bertarelli and the Bertarelli family. The Merck ...
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related to: phenolphthalein merck company