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7 results filtered with: Metabolite
  • Urea crystals
  • Urea crystals
  • Urea crystals
  • Urea crystals
  • Hippuric acid crystals
  • Bacteria metabolites from the respiratory tract
  • Crystals of malic acid, an intermediate in the TCA cycle. This chemical occurs naturally in certain foods giving them a tart flavour and when added to food it is labelled as E296.