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Is Nuclear Fast Red vegan?

Nuclear Fast Red

Vegan

Nuclear Fast Red is a synthetic anthraquinone dye used in histology as a nuclear stain and counterstain, often used alongside elastic fibre staining methods. It is also known as Kernechtrot and Calcium Red.

Also known as Calcium Red, Kernechtrot
CAS number 6409-77-4
CI number CI 60760
Last reviewed 3 June 2026

Sources

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