The proportion of the desired radioactive compound relative to other byproducts or impurities.
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Benzamide, N-[3,3,3-trifluoro-2-hydroxy-1-(1-methylethyl)propyl]-
17α-<(phenylseleno)ethynyl>-17β-estradiol
Phenol, 4-amino-2,6-dimethoxy-
1,2-Pyrrolidinedicarboxylic acid, 4-[[(4-methylphenyl)sulfonyl]oxy]-, bis(1,1-dimethylethyl) ester, (2S,4R)-
