Clemastine fumarate iupac wikipedia?

Clemastine fumarate is the salt form of clemastine (an antihistamine).

• IUPAC name (clemastine):
  (E)-[1-{[2-[(1R)-1-(pyridin-2-yl)ethyl]amino]ethyl]-1H-pyrrol-2-ylidene]methyl benzeneacetate

• IUPAC name (clemastine fumarate):
  It’s commonly written as clemastine (base) + fumaric acid in salt form (often: clemastine fumarate), but Wikipedia typically does not give a single separate, formal IUPAC string for the fumarate salt itself—because the systematic name usually remains essentially the same for the base drug with the counterion specified as “fumarate”.

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