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formazan

formazan

9.9
A colored chemical made during lab tests to show if cells are alive
  • noun
  • /fɔrˈmæzən/
  • Specialized
: formazano
  • During the experiment, the formazan produced a color change that indicated the presence of viable cells.

Examples

  • After adding tetrazolium salts, the formation of formazan was observed as a purple precipitate.

  • Formazan crystals were solubilized in 10% Triton X-100 and 0.1 N HCl in anhydrous isopropanol after repeated pipetting.

    Academic text (2016)
  • The laboratory technician used formazan to measure cell viability in the assay.

Surface Forms

formazan singular
formazans plural

Etymology

Formazan comes from the idea of something being formed plus the chemical ending -azan, so think of form as 'to make' and -azan as a chemistry ending. So, formazan is the colored substance 'formed' in lab tests that shows whether cells are alive.