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Key Documents

N0766

Sigma-Aldrich

Nile Blue A

Dye content, ≥75%, certified by the Biological Stain Commission, powder

Synonym(s):

Basic Blue 12, Nile blue sulfate

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About This Item

Linear Formula:
2C20H20N3O · SO4
CAS Number:
Molecular Weight:
732.85
Colour Index Number:
51180
EC Number:
MDL number:
UNSPSC Code:
12171500
PubChem Substance ID:
NACRES:
NA.47

product name

Nile Blue A, certified by the Biological Stain Commission

grade

certified by the Biological Stain Commission

Quality Level

form

powder

composition

Dye content, ≥75%

technique(s)

microbe id | staining: suitable

color

dark green

mp

>300 °C (dec.) (lit.)

solubility

H2O: 1 mg/mL

application(s)

diagnostic assay manufacturing
hematology
histology

storage temp.

room temp

SMILES string

[O-]S([O-])(=O)=O.CC\[N+](CC)=C1/C=CC2=Nc3c(OC2=C1)cc(N)c4ccccc34.CC\[N+](CC)=C5/C=CC6=Nc7c(OC6=C5)cc(N)c8ccccc78

InChI

1S/2C20H19N3O.H2O4S/c2*1-3-23(4-2)13-9-10-17-18(11-13)24-19-12-16(21)14-7-5-6-8-15(14)20(19)22-17;1-5(2,3)4/h2*5-12,21H,3-4H2,1-2H3;(H2,1,2,3,4)

InChI key

QIRDPEPUXNCOLD-UHFFFAOYSA-N

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Application

Nile Blue A has been used for the staining of eggs before transferring them to the hosts. It has been used for the staining of cells.

Features and Benefits

Used in the preparation of an amperometric glucose sensor.

Suitability

Certified for use in Lillie and Fullmer method for staining and discriminating between melanins and lipofuscins in paraffin sections of animal tissue; Lillie and Fuller method for fatty acids/lipids using frozen sections of fatty liver and avocado.

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

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Electrospun bioactive mats enriched with Ca-polyphosphate/retinol nanospheres as potential wound dressing.
Muller WEG
Biochemistry and Biophysics Reports, 3, 150-160 (2015)
Translation of incenp during oocyte maturation is required for embryonic development in Xenopus laevis.
Leblond GG
Biology of Reproduction, 86, 1-1 (2012)
The roles of maternal alpha-catenin and plakoglobin in the early Xenopus embryo.
Kofron M
Development, 124, 1553-1553 (1997)
Ce Cheng et al.
Molecules (Basel, Switzerland), 25(18) (2020-09-17)
β-carotene is a promising natural active ingredient for optimum human health. However, the insolubility in water, low oral bioavailability, and instability in oxygen, heat, and light are key factors to limit its application as incorporation into functional foods. Therefore, gliadin
S S Mortazavi et al.
Biological trace element research, 144(1-3), 1430-1436 (2011-07-07)
A simple and sensitive kinetic-spectrophotometric method is developed for the determination of trace amounts of iodine in blood serum samples based on its catalytic effect on the oxidation of Nile Blue A by potassium bromate in sulfuric acid medium and

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