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N4754

Sigma-Aldrich

Nigrosin water soluble

Powder

Synonyme(s) :

Acid black 2

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About This Item

Numéro CAS:
8005-03-6
Numéro C.I. (Colour Index):
50420
Numéro MDL:
MFCD00044681
Code UNSPSC :
12171500
Nomenclature NACRES :
NA.47

product name

Nigrosin water soluble, For use as a biological stain

Niveau de qualité

200

Forme

powder

Solubilité

water: 1 mg/mL, turbid

εmax

~250 at 575 nm in 50% ethanol

Application(s)

diagnostic assay manufacturing
hematology
histology

Température de stockage

room temp

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Description générale

Nigrosin is an acidic dye used as a negative stain for visualization of the capsule in bacteriological material.

Application

Nigrosin has the following applications:
  • to stain live sperm
  • as a viable cell staining agent especially in stem cell biology
  • as a negative stain in place of India ink for spirochetes, bacteria, protozoa, and fungi
  • in Dorner′s spore stain.

Code de la classe de stockage

11 - Combustible Solids

Classe de danger pour l'eau (WGK)

WGK 3

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

Équipement de protection individuelle

Eyeshields, Gloves, type N95 (US)

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Certificats d'analyse (COA)

Lot/Batch Number
BCCF8336
BCBX1760
BCBR0628V
BCBN9273V
BCBJ9097V

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Retrouvez la documentation relative aux produits que vous avez récemment achetés dans la Bibliothèque de documents.

Consulter la Bibliothèque de documents

Graff's Textbook of Routine Urinalysis and Body Fluids (2010)
Experiments in Microbiology, Plant Pathology and Biotechnology (2003)
Broadband UV-Vis optical property measurement in layered turbid media.
Wang Q
SPIE Medical Imaging. International Society for Optics and Photonics, 2014 (2011)
Quanzeng Wang et al.
Biomedical optics express, 3(6), 1226-1240 (2012-06-29)
The ability to accurately measure layered biological tissue optical properties (OPs) may improve understanding of spectroscopic device performance and facilitate early cancer detection. Towards these goals, we have performed theoretical and experimental evaluations of an approach for broadband measurement of
L Björndahl et al.
Human reproduction (Oxford, England), 18(4), 813-816 (2003-03-28)
The one-step eosin-nigrosin staining technique for assessment of sperm vitality was developed in the 1950s for various mammalian species. Although commonly used on human sperm in semen, a validation for this use has not previously been published. The technique was
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