Refined structure of hipposudoric and norhipposudoric acids, pigments of the red sweat of the hippopotamus

Takatoshi Matsumoto, Yoko Saikawa, Masaya Nakata, Kimiko Hashimoto

Research output: Contribution to journalArticle


The tautomeric structures of hipposudoric and norhipposudoric acids were investigated using a computational method. The results indicated that the most appropriate canonical structures for these compounds were different; hipposudoric acid possessed an enol form at the C9-carboxy group, while norhipposudoric acid had an enol form at the C5-oxo group.

Original languageEnglish
Pages (from-to)1738-1740
Number of pages3
JournalChemistry Letters
Issue number12
Publication statusPublished - 2015


ASJC Scopus subject areas

  • Chemistry(all)

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