Question 9

Caffeine (1), a mild stimulant, is present in an analgesic tablet with acetaminophen (2), an analgesic, anti-inflammatory agent.   If the tablet is dissolved in diethyl ether, how would you remove caffeine?


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Caffeine (1) Acetominophen (2)
  1. Extract with 1M NaHCO3.
  2. Extract with saturated aqueous NaCl.
  3. Extract with 1M NaOH.
  4. Extract with 1M HCl.