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Radium-223 dichloride (USP, radium chloride Ra 223), tradename Xofigo (formerly Alpharadin), is an alpha-emitting radiopharmaceutical. Bayer received FDA approval for this drug to treat prostate cancer osteoblastic bone metastases in May 2013. Radium-223 chloride is one of the most potent ((antineoplastic drugs)) known.
226 Ra occurs in the decay chain of 238 U (often referred to as the radium series). Radium has 34 known isotopes from 201 Ra to 234 Ra. In the early history of the study of radioactivity, the different natural isotopes of radium were given different names, as it was not until Frederick Soddy 's scientific career in the early 1900s that the ...
RA H Remington Arms Company – Hoboken, New Jersey. RHA Co. Robin Hood Ammunition Company (1898-1915; 1915–1917?) – Swanton, Vermont. Founded in 1898 by Vermont ...
Regulatory affairs (RA), is a profession that deals with an organization’s adherence to regulatory compliance.. It is a position mostly found within regulated industries, such as pharmaceuticals, medical devices, cosmetics, agrochemicals (plant protection products and fertilizers), energy, banking, telecom etc. Regulatory affairs also has a very specific meaning within the healthcare ...
RA was the first BBS software to support the popular JAM Message Base Format, which was partly conceived by RA's author, Andrew Milner. RA was also the first shareware BBS software to support a FDB (file database), rather than using files.bbs text files to describe files in each directory.
228 Ra: 228 Ra MsTh 1: Mesothorium 1 β −: 5.75 a 0.046 228 Ac: 228 Ac MsTh 2: Mesothorium 2 β −: 6.25 h 2.124 228 Th: 228 Th RdTh Radiothorium α 1.9116 a 5.520 224 Ra: 224 Ra ThX Thorium X α 3.6319 d 5.789 220 Rn: 220 Rn Tn Thoron, Thorium Emanation α 55.6 s 6.404 216 Po: 216 Po ThA Thorium A α 0.145 s 6.906 212 Pb: 212 Pb ThB Thorium ...
Radium hydroxide is an inorganic compound of radium, hydrogen, and oxygen with the chemical formula Ra(OH) 2. [1] Stability constant of aqueous RaOH + ion pair at zero ionic strength is equal to 5. [ 2 ]
Radium nitrate is a radioactive salt with the formula Ra(NO 3) 2. It is a white solid, but old samples appear yellowish-grey. Although radium chloride and radium bromide are less soluble than the corresponding barium salts, radium nitrate is more soluble than barium nitrate. [1] [2] It decomposes at 280 °C to radium oxide. [citation needed]