Active transport of 5,5-dimethyl-2,4-oxazolidinedione

John M. Dietschy, Norman W. Carter

Research output: Contribution to journalArticlepeer-review

6 Scopus citations


5,5-Dimethyl-2,4-oxazolidinedinedione, a substance commonly used to estimate intracellular pH, moves against both a concentration gradient and a hydrogen-ion gradient in the everted gut sac. Furthermore, the value of the flux ratio for this substance under conditions of zero electrochemical potential across the bowel wall unequivocally demonstrates active transport.

Original languageEnglish (US)
Pages (from-to)1294-1296
Number of pages3
Issue number3701
StatePublished - 1965

ASJC Scopus subject areas

  • General


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