Key Documents

View All Documentation

O0625

Oil Red O

Name: Oil Red O
Brand: SIAL

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

Synonym(s):

1-([4-(Xylylazo)xylyl]azo)-2-naphthol, 1-[2,5-Dimethyl-4-(2,5-dimethylphenylazo)phenylazo]-2-naphthol, Solvent Red 27

Select a Size

Change View

About This Item

Empirical Formula (Hill Notation):

C₂₆H₂₄N₄O

CAS Number:

1320-06-5

Molecular Weight:

408.49

NACRES:

NA.47

PubChem Substance ID:

24897931

UNSPSC Code:

12171500

EC Number:

215-295-3

MDL number:

MFCD00003898

Colour Index Number:

26125

Technical Service

Need help? Our team of experienced scientists is here for you.

Let Us Assist

Properties

Product Name

Oil Red O, certified by the BSC

agency

certified by the BSC

form

powder

composition

Dye content, ≥75%

technique(s)

microbe id | staining: suitable

mp

120 °C (dec.) (lit.)

solubility

chloroform/ethanol (1:1): 1 mg/mL

application(s)

diagnostic assay manufacturing
hematology
histology

storage temp.

room temp

SMILES string

Cc1ccc(C)c(c1)\N=N\c2cc(C)c(cc2C)\N=N/c3c(O)ccc4ccccc34

InChI

1S/C26H24N4O/c1-16-9-10-17(2)22(13-16)27-28-23-14-19(4)24(15-18(23)3)29-30-26-21-8-6-5-7-20(21)11-12-25(26)31/h5-15,31H,1-4H3

InChI key

NPGIHFRTRXVWOY-UHFFFAOYSA-N

Description

General description

Oil Red O is a lysochrome. It is used to stain and visualise general localization of fats.

Oil Red O stains lipid materials and the lipids take red-orange color. It also marks vacuoles, particularly observed in ALL-L3 (acute lymphoblastic leukemia) or Burkitt′s lymphoma/leukemia. Oil Red O staining is done on fresh samples, since alcohol fixation removes lipid.

Application

Oil Red O has been used for the staining of lipid droplets and lipid-containing vacuoles in cells.

Oil Red O has been used:

for staining liver sections in histological analysis
for the quantification of lipids in cells
to stain aorta to examine atherosclerotic lesions

Certified for use as a fat stain in Churukian′s modification of the method of Lillie and Asburn.

Still not finding the right product?

Explore all of our products under Oil Red O

Storage Class

11 - Combustible Solids

wgk

WGK 3

ppe

Eyeshields, Gloves, type N95 (US)

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Search for a COA

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Clinical Laboratory Medicine (2002)

Theory and Practice of Histological Techniques (2008)

Human bone marrow harbors cells with neural crest-associated characteristics like human adipose and dermis tissues

Coste C, et al.

PLoS ONE, 12(7), e0177962-e0177962 (2017)

View All Related Papers

Global Trade Item Number

SKU	GTIN
O0625-100G	04061835347902
O0625-25G	04061835347919