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E2634

Sigma-Aldrich

Ergosta-5,7,9(11),22-tetraen-3β-ol

~96% (HPLC)

Synonym(s):

Dehydroergosterol

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About This Item

Empirical Formula (Hill Notation):
C28H42O
CAS Number:
516-85-8
Molecular Weight:
394.63
MDL number:
MFCD00083319
UNSPSC Code:
12352200
PubChem Substance ID:
24894479
NACRES:
NA.77

Assay

~96% (HPLC)

Quality Level

200

storage temp.

−20°C

SMILES string

[H][C@@]1(CC[C@@]2([H])C3=CC=C4C[C@@H](O)CC[C@]4(C)C3=CC[C@]12C)[C@H](C)\C=C\[C@H](C)C(C)C

InChI

1S/C28H42O/c1-18(2)19(3)7-8-20(4)24-11-12-25-23-10-9-21-17-22(29)13-15-27(21,5)26(23)14-16-28(24,25)6/h7-10,14,18-20,22,24-25,29H,11-13,15-17H2,1-6H3/b8-7+/t19-,20+,22-,24+,25-,27-,28+/m0/s1

InChI key

QSVJYFLQYMVBDR-CMNOFMQQSA-N

General description

Ergosta-5,7,9(11),22-tetraen-3β-ol is an analogue of ergosterol. It comprises of three conjugated double bonds in a steroid ring system. Ergosta-5,7,9(11),22-tetraen-3β-ol possesses anti-inflammatory property. It is used as a cholesterol reporter.

Application

A fluorescent cholesterol analog useful as a probe in membrane research.
Ergosta-5,7,9(11),22-tetraen-3β-ol has been used to examine the acyltransferase activity of lecithin:cholesterol acyltransferase (LCAT). It has also been used for liposome preparation.

Pictograms

Health hazard
GHS08

Signal Word

Warning

Hazard Statements

H351,H373

Precautionary Statements

P201 - P308 + P313

Hazard Classifications

Carc. 2 - STOT RE 2

Storage Class Code

11 - Combustible Solids

WGK

WGK 2

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’.

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Dehydroergosterol as an Analogue for Cholesterol: Why It Mimics Cholesterol So Well or Does It?
Pourmousa M, et al.
The Journal of Physical Chemistry B, 118(26), 7345-7357 (2014)
Brad Chazotte
Cold Spring Harbor protocols, 2011(5), pdb-pdb (2011-05-04)
Cholesterol, an essential component of most cellular membranes, is present in the plasma membrane and is enriched within lipid rafts. It is, however, virtually absent from the mitochondrial inner membrane, and there is little within the endoplasmic reticulum. Dehydroergosterol (DHE)
Liming Qiu et al.
Biophysical journal, 96(10), 4299-4307 (2009-05-20)
The interaction of an amphiphilic, 40-amino acid beta-amyloid (Abeta) peptide with liposomal membranes as a function of sterol mole fraction (X(sterol)) was studied based on the fluorescence anisotropy of a site-specific membrane sterol probe, dehydroergosterol (DHE), and fluorescence resonance energy
Daniel Wüstner et al.
Histochemistry and cell biology, 130(5), 891-908 (2008-09-13)
Distribution and dynamics of cholesterol in the plasma membrane as well as internalization pathways for sterol from the cell surface are of great cell biological interest. Here, UV-sensitive wide field microscopy of the intrinsically fluorescent sterols, dehydroergosterol (DHE) and cholestatrienol
Fischer, R.T., et al.
J. Biol. Physics, 13, 13-13 (1985)
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