Is solifenacin a quaternary amine?

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From the FDA Drug Label

Solifenacin succinate is butanedioic acid, compounded with (1S)-(3R)-1-azabicyclo[2.2.2]oct-3-yl 3,4-dihydro-1-phenyl-2(1H) iso-quinoline carboxylate (1:1) having an empirical formula of C23H26N2O2•C4H6O4, and a molecular weight of 480. 55. The chemical structure of solifenacin succinate is described, but it does not explicitly state that it is a quaternary amine.

  • The term quaternary amine refers to a specific type of chemical compound.
  • The description provided in the label does not directly indicate the presence of a quaternary amine. 1

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