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RICHARD-ALLAN SCIENTIFIC COMPANY · Model Hematoxylin 7211 · UDI-DI 00673693483216

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Description

Hematoxylin 7211 is a rapid, progressive hematoxylin. The product is a hybrid between classical Harris and Gill formulations: it provides the classic intensity and hues of a Harris hematoxylin and the rapid progressive qualities of a Gill hematoxylin. Differentiation is not required, but if desired Clarifier 1 should be used. Clarifier 1 will eliminate any background staining that may be caused by the use of excess gelatin or other adhesives in the water bath. Clarifier 2 can be used as well; however, a shorter immersion time is required. Hematoxylin 7211 does not have an affinity for acid mucopolysaccharide (mucin) staining, as do some other hematoxylin formulations. It provides consistent, well-delineated nuclear staining results.

Recalls

Date	Firm	Reason
2017-12-19	Ventana Medical Systems Inc	Increased reports of leaking and sticking reagent dispensers for horseradish peroxidase (HRP) dispensers (part of the iView, ultraView and OptiView detection kits, as well as CINte

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Data compiled from public U.S. FDA sources (GUDID, 510(k)/PMA, MAUDE, recalls, establishment registration). Adverse-event reports are unverified and do not establish causation. Informational only — not medical, clinical, or regulatory advice.