Toluidine Blue 1% - Frozen Section Applications

Metachromatic thiazine dye stains acidic tissue components purple across intraoperative margin assessment and amyloid screening workflows.

Surgical pathology achieves 2-minute mast cell identification confirming mastocytosis margins. Purple granule contrast prevents incomplete resection.

Quality control verifies 1% concentration, pH 4.0 stability, and metachromatic sensitivity. Rapid protocol prevents frozen section turnaround delay.