Skip to Content
Merck
CN
All Photos(1)

Documents

SML1792

Sigma-Aldrich

Oxazole yellow

≥98% (HPLC)

Synonym(s):

4-[(3-Methyl-2(3H)-benzoxazolylidene)methyl]-1-[3-(trimethylammonio)propyl]-quinolinium diiodide

Sign Into View Organizational & Contract Pricing
All Photos(1)

About This Item

Empirical Formula (Hill Notation):
C24H29I2N3O
CAS Number:
152068-09-2
Molecular Weight:
629.32
UNSPSC Code:
12352200
PubChem Substance ID:
329826067
NACRES:
NA.77

Quality Level

100

Assay

≥98% (HPLC)

form

powder

storage condition

protect from light

color

yellow to orange-brown

solubility

H2O: 5, clear (warmed)

storage temp.

2-8°C

SMILES string

CN1C2=CC=CC=C2OC1=CC3=CC=[N+](CCC[N+](C)(C)C)C4=C3C=CC=C4

InChI

1S/C24H29N3O.2HI/c1-25-22-12-7-8-13-23(22)28-24(25)18-19-14-16-26(15-9-17-27(2,3)4)21-11-6-5-10-20(19)21;;/h5-8,10-14,16,18H,9,15,17H2,1-4H3;2*1H/q+2;;/p-2

InChI key

ULHRKLSNHXXJLO-UHFFFAOYSA-L

Biochem/physiol Actions

Oxazole yellow is a fluorescent cyanine dye that binds to DNA and is used to detect apoptotic cells. Oxazole yellow does not enter live cells. However, during apoptosis the cytoplasmic membrane becomes slightly permeable, allowing entry of the dye. Oxazole yellow is often used along with propidium iodide (catalog no. P4170), a DNA dead cell stain that does not enter either live or apoptotic cells. The λEx/λEm of Oxazole yellow is 491/509.

Pictograms

Skull and crossbones
GHS06

Signal Word

Danger

Hazard Statements

H301,H315,H319

Hazard Classifications

Acute Tox. 3 Oral - Eye Irrit. 2 - Skin Irrit. 2

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

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’.

Already Own This Product?

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

Visit the Document Library

Andreas S Biebricher et al.
Nature communications, 6, 7304-7304 (2015-06-19)
DNA intercalators are widely used as fluorescent probes to visualize DNA and DNA transactions in vivo and in vitro. It is well known that they perturb DNA structure and stability, which can in turn influence DNA-processing by proteins. Here we
Sho Fujisawa et al.
Cytotechnology, 66(2), 259-273 (2013-09-26)
Radiofrequency (RF) ablation (RFA) is a minimally invasive treatment for colorectal-cancer liver metastases (CLM) in selected nonsurgical patients. Unlike surgical resection, RFA is not followed by routine pathological examination of the target tumor and the surrounding liver tissue. The aim

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service