The stain used for demonstrating Auer rods in blasts is -
Periodic Acid Schiff(PAS
Myeloperoxidase
Leucocyte alkaline phosphatase
Non-specific esterase
The cytochemical stain, Myeloperoxidase is positive in immature myeloid cells containing granules and Auer rods Reference textbook of Pathology 7th edition author Harsha Mohan page number 342
Haematology