Delafield Hematoxylin Stain Solution

Delafield hematoxylin is identical to Ehrlich hematoxylin in that both are forms of naturally oxidized hematoxylin. This means that hematoxylin is exposed to light and air to undergo natural oxidation into hematein. This process is relatively slow, typically taking 3 to 6 months; however, the staining efficacy can be maintained for a long time.

The Delafield hematoxylin staining solution provides clear and detailed visualization of nuclear chromatin. The staining duration is relatively long, approximately 15-20 min. This staining solution is suitable for paraffin section staining in teaching and research settings but is not applicable to frozen section staining.