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O1516

Sigma-Aldrich

Oil Red O solution

0.5% in propylene glycol

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Synonym(s):
Solvent Red 27, Sudan Red 5B
Empirical Formula (Hill Notation):
C26H24N4O
CAS Number:
1320-06-5
Molecular Weight:
408.49
NACRES:
NA.47

form

liquid

Quality Level

200

concentration

0.5% in propylene glycol

λmax

0.40-1.00 at 506-520 nm

application(s)

diagnostic assay manufacturing
hematology
histology

storage temp.

room temp

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/h5-15,29H,1-4H3/b28-27?,30-26-

InChI key

HJAYEODIXUYVIC-LTFAAIOASA-N

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General description

Oil Red O stains and imparts red-orange color to lipids. It has also been shown to mark vacuoles, observed in acute lymphoblastic leukemia (ALL-L3) or Burkitt′s lymphoma/leukemia. Oil Red O staining is done on fresh samples, as alcohol fixation removes lipids.

Application

Oil red O solution has been used to identify intracytoplasmatic lipid droplets on 3T3-L1 cell line adipocytes and to measure lipid content in Simpson-Golabi-Behmel syndrome (SGBS) preadipocytes.
Oil red O is a lysochrome (fat-soluble dye) diazo dye used for staining of neutral triglycerides and lipids on frozen sections and some lipoproteins on paraffin sections. In histology, a supersaturated solution of oil red O in isopropanol may be used to stain fat in tissue.

Storage Class Code

10 - Combustible liquids

WGK

WGK 3

Flash Point(F)

217.4 °F

Flash Point(C)

103 °C

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