9-(Dimethylamino)-5-imino-10-methyl-5H-benzo(a)phenoxazine hydrochloride; Cresole Violet
|Jmol 3D model||Interactive image|
|Flash point||245.5 °C (473.9 °F; 518.6 K)|
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Cresyl violet stain
It is used in biology and medicine as a histological stain. Cresyl violet is an effective and reliable stain used for light microscopy sections. Initially, tissue sections are "defatted" by passing through graded dilutions of ethanol. Then, rehydrated by passing back through decreasing concentrations of ethanol. Lastly, back into water. The ethanol solutions act to differentiate the stain, causing myelin and other components to lose color whereas perikarya retain the color. It is also used to find Helicobacter pylori.
Cresyl violet is used to stain Heinz bodies in red blood corpuscles or for staining of the neurons in the brain and spinal cord. It is used to demonstrate the nissl substance in the neurons and cell nuclei. In this role it is also often used as a counterstain to Luxol fast blue, which stains the myelin.
- Goggin N, Rowland M, Imrie C, Walsh D, Clyne M, Drumm B (1998). "Effect of Helicobacter pylori eradication on the natural history of duodenal ulcer disease". Arch. Dis. Child. 79 (6): 502–5. doi:10.1136/adc.79.6.502. PMC . PMID 10210995.
- Burnett RA, Brown IL, Findlay J (1987). "Cresyl fast violet staining method for Campylobacter like organisms". J. Clin. Pathol. 40 (3): 353. doi:10.1136/jcp.40.3.353-b. PMC . PMID 2435763. Free Full Text.
- About stains - University of Western Australia.
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