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Movat’s Modified Pentachrome Protocol

This is a quick version of Movat’s Pentachrome.  The long version is an overnight stain, I hate waiting till the next day to find out if the stain worked.  It is sometimes hard to visualize all 5 colors but with a aorta in the heart, it is possible.  The stain picture will have to be edited in later.

Control tissue that I use: Skin, Aorta in the heart

Safety equipment: Work under a hood with lab coat, gloves, and glasses.

  1. Deparaffinize and hydrate to DH2O
  2. Preheat Alkaline alcohol in 60C oven or water bath
  3. Mordant in bouin’s at 60C water bath——- 30 minutes (under hood!) (re-use)
  4. Cool—————————————– 10 minutes in room temp water
  5. Wash in running water—————– 10 minutes
  6. 1% Alcian blue————————— 25 minutes (re-use)
  7. Wash in running water—————– 5 minutes
  8. Alkaline alcohol at 60C —————- 10 minutes
  9. Wash in running water—————— 5 minutes
  10. Weigerts———————————– 15 minutes (dump)
  11. Differentiate in 2% ferric chloride for- 3 minutes (re-use)
  12. Rinse in H2O——————————- 10 seconds
  13. Sodium thiosulfate for——————– 1 minute (re-use)
  14. Wash in running water——————- 5 minutes
  15. Crocein scarlet/ Acid fuchsin———- 1.5 minutes (re-use)
  16. Wash in running water—————— 5 minutes
  17. 5% Phosphotungstic acid————– 5 minutes (re-use)
  18. Transfer directly to 1% acetic acid–  5 minutes (re-use)
  19. Wash in running water—————— 5 minutes
  20. Dehydrate quickly 95% alc. 1 min/2x    100% alc. 1 min
  21. Alcoholic saffron————————– 60 minutes (re-use)
  22. Rinse in 2 changes of 100% alcohol, 1 min each
  23. Clear in xylene and mount


Nuclei and elastic fibers—Black


Ground substance and mucin–Blue

Fibrinoid, fibrin–Intense Red



An Expert Histology Service

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