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Key Documents

198285

Sigma-Aldrich

Nigrosin

certified by the Biological Stain Commission

Synonym(s):

Acid black 2, Nigrosin water soluble

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About This Item

CAS Number:
Colour Index Number:
50420
MDL number:
UNSPSC Code:
12171500
NACRES:
NA.47

grade

certified by the Biological Stain Commission

Quality Level

form

solid

solubility

H2O: 0.1%
H2O: soluble

λmax

570 nm

application(s)

diagnostic assay manufacturing
hematology
histology

storage temp.

room temp

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Suitability

Certified for use in Dorner′s spore stain. Used as a negative stain in place of India ink for spirochetes, bacteria, protozoa and fungi.
Used as a negative stain in place of India ink for spirochetes, bacteria, protozoa and fungi.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Lina Hacker et al.
Journal of biomedical optics, 25(9) (2020-09-06)
Photoacoustic imaging (PAI) enables the detection of blood hemoglobin (HB) concentration and oxygenation (sO2) with high contrast and resolution. Despite the heavy use of photoacoustically determined total hemoglobin (THb) and oxygenation (sO2) biomarkers in PAI research, their relationship with underlying
Chris Campbell et al.
Biomedical optics express, 11(10), 5800-5813 (2020-11-06)
Hemozoin (Hz) is a crystal by-product of hemoglobin consumption by malaria parasites. There are currently no in vivo deep tissue sensing methods that can quantify Hz presence noninvasively, which would be advantageous for malaria research and treatment. In this work
G E Freneau et al.
Animal reproduction science, 118(2-4), 176-181 (2009-09-30)
The objectives of this study were to compare two different methods of evaluating bull sperm morphology, bright-field (BF) microscopy of eosin-nigrosin (EN) stained dry-mount semen smears and differential interference phase contrast (DIC) microscopy of wet-mount semen 'fixed' in isotonic formal
D Kutter et al.
Clinica chimica acta; international journal of clinical chemistry, 258(2), 231-239 (1997-02-17)
Nigrosin binds to proteins yielding a dark blue complex. This reaction is used for detecting low protein concentrations in urine by applying spots of urine to cellulose acetate strips which are coloured by nigrosin. The intensity of coloured spots remaining
Jie Guo et al.
Environmental science & technology, 42(2), 624-628 (2008-02-21)
Nonmetals reclaimed from waste phenolic cellulose paper printed circuit boards (PCBs) are used to replace wood flour in the production of phenolic molding compound (PMC). The results indicate that filling of nonmetals in PMC improves the charpy notched impact strength

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