Cancer Diagnostics Tissue Marking Dye for marking margins & multiple biopsies. This dye was developed for defining margins without bleeding, changing of colour or fading. These durable bright dyes hold permanently through the processing and staining of samples with graded alcohols, xylene and other solvents common to histology. With flip top bottle squeezy dispenser cap. Tissue Marking Dyes are formulated to be used without a mordant, however, Ink Aid assists in adherence particularly of fatty tissue and is available to order separately in a 240ml bottle Item No. RCD-IA-4000-00A