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Sigma-Aldrich

Nile Red

for microscopy

Synonym(s):

Nile Blue A Oxazone

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About This Item

Empirical Formula (Hill Notation):
C20H18N2O2
CAS Number:
Molecular Weight:
318.37
Beilstein:
279110
EC Number:
MDL number:
UNSPSC Code:
12171500
PubChem Substance ID:
NACRES:
NA.32

grade

for microscopy

Quality Level

form

crystals

mp

203-205 °C (lit.)

λmax

553 nm

SMILES string

CCN(CC)c1ccc2N=C3C(Oc2c1)=CC(=O)c4ccccc34

InChI

1S/C20H18N2O2/c1-3-22(4-2)13-9-10-16-18(11-13)24-19-12-17(23)14-7-5-6-8-15(14)20(19)21-16/h5-12H,3-4H2,1-2H3

InChI key

VOFUROIFQGPCGE-UHFFFAOYSA-N

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General description

Nile Red is a phenoxazone dye. It is an important stain, which is used to detect intracellular lipid droplets and proteins. Nile Red detects lysosomes and lysosome-related organelles, like gut granules in C. elegans intestinal cells. It exhibits strong fluorescence enhancement and is used for staining SDS (sodium dodecyl sulphate) gels.

Application

Nile Red has been used:
  • as a fluorescent dye for staining fat by confocal scanning laser microscopy (CSLM)
  • to label nanoparticles (NPs)
  • for lipid analysis

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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