High Quality Content by WIKIPEDIA articles! Sodium pertechnetate is the inorganic compound with the formula NaTcO4. This colourless salt consists of the anion [TcO4]?. The radioactive 99mTcO4? anion is an important radiopharmaceutical for diagnostic use. The advantages to 99mTc include its short half-life of 6 hours and the low radiation exposure to the patient, which allow a patient to be injected with activities of more than 30 millicuries. Na[99mTcO4] is a precursor to a variety of derivatives that are used to image different parts of the body. Traditionally, inorganic compounds are considered to be of a mineral, not biological origin. Complementarily, most organic compounds are traditionally viewed as being of biological origin. Over the past century, the precise classification of inorganic vs organic compounds has become less important to scientists, primarily because the majority of known compounds are synthetic and not of natural origin.

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