An alternative spelling of heliotropin; a fragrant organic compound derived from heliotrope plants used in cosmetics and food flavoring.
From 'heliotrope' with the chemical suffix '-ine,' an alternative to '-in' for naming organic compounds. Both spellings were common in early chemical nomenclature.
Heliotropine and heliotropin are basically the same molecule with different names—a perfect example of how chemistry's naming conventions evolved before standardization in the late 1800s.
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