Skip to Content
MilliporeSigma
All Photos(1)

Key Documents

203390

Sigma-Aldrich

(±)-Blebbistatin

≥97% (HPLC), solid, Myosin II inhibitor, Calbiochem®

Synonym(s):

(±)-Blebbistatin

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

About This Item

Empirical Formula (Hill Notation):
C18H16N2O2
CAS Number:
674289-55-5
Molecular Weight:
292.33
UNSPSC Code:
12352200
NACRES:
NA.77

product name

(±)-Blebbistatin, (±)-Blebbistatin, CAS 674289-55-5, is a cell-permeable, selective, and reversible inhibitor of nonmuscle myosin II. Blocks cell blebbing and disrupts cell migration & cytoKinesis in vertebrate cells.

Quality Level

100

assay

≥97% (HPLC)

form

solid

manufacturer/tradename

Calbiochem®

storage condition

OK to freeze
protect from light

color

yellow

solubility

methanol: 1.5 mg/mL
100% DMSO: 100 mg/mL
90% DMSO: 75 mg/mL

shipped in

wet ice

storage temp.

−20°C

InChI

1S/C18H16N2O2/c1-12-7-8-15-14(11-12)16(21)18(22)9-10-20(17(18)19-15)13-5-3-2-4-6-13/h2-8,11,22H,9-10H2,1H3

InChI key

LZAXPYOBKSJSEX-UHFFFAOYSA-N

General description

A cell-permeable compound that acts as a selective, potent, and reversible inhibitor of non-muscle myosin II. Inhibits the ATPase and gliding motility of human platelets (≤100 µM) without affecting myosin light chain kinase (MLCK) activity. Has been shown to block cell blebbing and to rapidly disrupt directed cell migration and cytokinesis in vertebrate cells. Does not disrupt mitosis or affect contractile ring assembly.
A cell-permeable compound that acts as a selective, potent, and reversible inhibitor of nonmuscle myosin II. Inhibits the ATPase and gliding motility of human platelets (≤ 100 µM) without affecting myosin light chain kinase (MLCK) activity. Has been shown to block cell blebbing and to rapidly disrupt directed cell migration and cytokinesis in vertebrate cells. Does not disrupt mitosis or affect contractile ring assembly. A 50 mM (5 mg/342 µl) solution of (±)-Blebbistatin (Cat. No. 203389) in 90% DMSO is also available.

Biochem/physiol Actions

Cell permeable: yes
Primary Target
ATPase
Product does not compete with ATP.
Reversible: yes
Target IC50: <100 µM inhibiting the ATPase and gliding motility of human platelets

Packaging

Packaged under inert gas

Reconstitution

Following reconstitution in 90% DMSO, aliquot and freeze (-20°C). Stock solutions in 90% DMSO are stable for up to 1 month at -20°C. Stock solutions in 100% DMSO are unstable; reconstitute just prior to use.

Other Notes

Shu, S., et al. 2005. Proc. Natl. Acad. Sci. USA102, 1472.
Kovacs, M., et al. 2004. J. Biol. Chem.279, 35557.
Straight, A.F., et al. 2003. Science299, 1743.
Cheung, A., et al. 2001. Mol. Biol. Cell Suppl.12, 271a.

Legal Information

CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany

Storage Class

11 - Combustible Solids

wgk_germany

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’.

Already Own This Product?

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

Visit the Document Library

Mark Sweeney et al.
International journal of molecular sciences, 24(16) (2023-08-26)
Cardiac fibrosis is a common pathological process in heart disease, representing a therapeutic target. Transforming growth factor β (TGFβ) is the canonical driver of cardiac fibrosis and was recently shown to be dependent on interleukin 11 (IL11) for its profibrotic
Antonios Georgantzoglou et al.
The Journal of cell biology, 221(8) (2022-06-23)
Migrating cells must interpret chemical gradients to guide themselves within tissues. A long-held principle is that gradients guide cells via reorientation of leading-edge protrusions. However, recent evidence indicates that protrusions can be dispensable for locomotion in some contexts, raising questions
Mike B Barnkob et al.
Nature communications, 15(1), 3173-3173 (2024-04-13)
Semaphorin-3A (SEMA3A) functions as a chemorepulsive signal during development and can affect T cells by altering their filamentous actin (F-actin) cytoskeleton. The exact extent of these effects on tumour-specific T cells are not completely understood. Here we demonstrate that Neuropilin-1
Sarah Escuin et al.
Disease models & mechanisms, 16(3) (2023-03-15)
Understanding the molecular mechanisms that lead to birth defects is an important step towards improved primary prevention. Mouse embryos homozygous for the Kumba (Ku) mutant allele of Zic2 develop severe spina bifida with complete lack of dorsolateral hinge points (DLHPs)
Ling-Yea Yu et al.
Bio-protocol, 13(21), e4867-e4867 (2023-11-16)
Cell signaling is highly integrated for the process of various cell activities. Although previous studies have shown how individual genes contribute to cell migration, it remains unclear how the integration of these signaling pathways is involved in the modulation of
View All Related Papers

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