Skip to Content
MilliporeSigma
All Photos(1)

Key Documents

SML0075

Sigma-Aldrich

OBAA

≥98% (HPLC)

Synonym(s):

3-(4-octadecyl)benzoylacrylic acid, 4-(4-octadecylphenyl)-4-oxo-2-Butenoic acid

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

About This Item

Empirical Formula (Hill Notation):
C28H44O3
CAS Number:
134531-42-3
Molecular Weight:
428.65
UNSPSC Code:
41106300
NACRES:
NA.77

Quality Level

100

assay

≥98% (HPLC)

form

powder

storage condition

desiccated

color

white to tan

solubility

DMSO: ≥5 mg/mL at 60 °C

storage temp.

2-8°C

InChI

1S/C28H44O3/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18-25-19-21-26(22-20-25)27(29)23-24-28(30)31/h19-24H,2-18H2,1H3,(H,30,31)

InChI key

ZBESASFHIWDSCJ-UHFFFAOYSA-N

Application

OBAA may be used in PLA2-mediated cell signaling studies.

Biochem/physiol Actions

OBAA is a phospholipase A2 inhibitor and prevents the melittin-induced influx of Ca+2 in trypanosomes. It inhibits the generation of ROS when epithelial and endothelial cells are treated with cholic acid.
OBAA is a potent inhibitor of phospholipases.

Features and Benefits

This compound is featured on the Phospholipase A2 page of the Handbook of Receptor Classification and Signal Transduction. To browse other handbook pages, click here.

Storage Class

11 - Combustible Solids

wgk_germany

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

Yoshio Araki et al.
Free radical biology & medicine, 39(6), 769-780 (2005-08-20)
The barrier functions in epithelial and endothelial cells seem to be very important for maintaining normal biological homeostasis. However, it is unclear whether or how bile acids affect the epithelial barrier. We examined the bile acid-induced disruption of the epithelial
J Eintracht et al.
The Biochemical journal, 336 ( Pt 3), 659-666 (1998-12-08)
In contrast with mammalian cells, little is known about the control of Ca2+ entry into primitive protozoans. Here we report that Ca2+ influx in pathogenic Trypanosoma brucei can be regulated by phospholipase A2 (PLA2) and the subsequent release of arachidonic

Articles

Phospholipase A2

Phospholipase A2 (PLA2) designates a class of enzymes that hydrolyze the sn-2 ester of glycerophospholipids to produce a fatty acid and a lysophospholipid. It has become clear that some of these enzymes liberate arachidonic acid in mammalian cells for the biosynthesis of eicosanoids, and thus there has been considerable interest in developing PLA2 inhibitors. Based on amino acid sequences, there are now more than 12 distinct groups of mammalian PLA2s, as well as many non-mammalian forms, all of which have been classified into 14 distinct groups with many subgroups.

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