Skip to Content
MilliporeSigma
All Photos(1)

Key Documents

555550

Sigma-Aldrich

Rho Kinase Inhibitor

The Rho kinase inhibitor, CAS 872543-07-6, is a cell-permeable, highly specific, reversible, potent, and ATP-competitive inhibitor of Rho-associated kinase (ROCK; Ki = 1.6 nM).

Synonym(s):

Rho Kinase Inhibitor, H-1152, H-1152P, (S)-(+)-2-Methyl-1-[(4-methyl-5-isoquinolinyl)sulfonyl]homopiperazine, 2HCl, ROCK Inhibitor, Dimethylfasudil (diMF, H-1152P)

Sign Into View Organizational & Contract Pricing


About This Item

Empirical Formula (Hill Notation):
C16H21N3O2S · 2HCl
CAS Number:
Molecular Weight:
392.34
UNSPSC Code:
12352200
NACRES:
NA.54

Quality Level

Assay

≥95% (HPLC)

form

solid

manufacturer/tradename

Calbiochem®

storage condition

OK to freeze
desiccated (hygroscopic)
protect from light

color

white

solubility

methanol: 5 mg/mL
water: 5 mg/mL

shipped in

ambient

storage temp.

2-8°C

InChI

1S/C16H21N3O2S.2ClH/c1-12-9-18-11-14-5-3-6-15(16(12)14)22(20,21)19-8-4-7-17-10-13(19)2;;/h3,5-6,9,11,13,17H,4,7-8,10H2,1-2H3;2*1H/t13-;;/m0../s1

InChI key

BFOPDSJOLUQULZ-GXKRWWSZSA-N

General description

A cell-permeable isoquinolinesulfonamide compound that acts as a highly specific, reversible, potent, and ATP-competitive inhibitor of G-protein Rho-associated kinase (ROCK; Ki = 1.6 nM). Exhibits a much weaker affinity for other serine/threonine kinases (Ki = 630 nM for PKA, 9.27 μM for PKC, and 10.1 μM for MLCK). Shown to selectively block lysophosphatidic acid-induced, but not PDBu-induced, phosphorylation of myristoylated alanine-rich C kinase substrate MARCKS (IC50 = 2.5 μM) in NT-2 cells. Reported to be more potent and selective than Y-27632 (Cat. Nos. 688000 and 688001). Mainly targets Aurora Kinase A, and induces polyploidization of acute megakaryocytic leukemia cells (AMKL). At 10 mM (500 µg/128 µl) solution of Rho Kinase Inhibitor (Cat. No. 555552) in H2O is also available.
A cell-permeable isoquinolinesulfonamide compound that acts as a highly specific, reversible, potent, and ATP-competitive inhibitor of G-protein Rho-associated kinase (ROCK; Ki = 1.6 nM). Inhibits other serine/threonine kinases only at higher concentrations (Ki = 630 nM for PKA, 9.27 µM for PKC, and 10.1 µM for MLCK). Shown to selectively block lysophosphatidic acid-induced, but not PDBu-induced, phosphorylation of myristoylated alanine-rich C kinase substrate (MARCKS) in NT-2 cells (IC50 = 2.5 µM). Reported to be a more potent and selective inhibitor than Y-27632 (Cat. No. 688000 & 688001). Mainly targets Aurora Kinase A, and induces polyploidization of acute megakaryocytic leukemia cells (AMKL).

Biochem/physiol Actions

Cell permeable: yes
Primary Target
ROCK
Product competes with ATP.
Reversible: yes
Target Ki: 1.6 nM against G-protein Rho-associated kinase

Packaging

Packaged under inert gas

Warning

Toxicity: Harmful (C)

Reconstitution

Following reconstitution, aliquot and freeze (-20°C). Stock solutions are stable for up to 6 months at -20°C.

Other Notes

Wen, Qiang, et al. 2012. Cell150, 575.
Ikenoya, M., et al. 2002. J. Neurochem.81, 9.
Sasaki, Y., et al. 2002. Pharmacol. Ther.93, 225.

Legal Information

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

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

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

Lydie Flasse et al.
Cell reports, 31(8), 107677-107677 (2020-05-28)
Cell polarity is essential for the architecture and function of numerous epithelial tissues. Here, we show that apical restriction of planar cell polarity (PCP) components is necessary for the maintenance of epithelial integrity. Using the mammalian pancreas as a model
Jose L Orgaz et al.
Cancer cell, 37(1), 85-103 (2020-01-15)
Despite substantial clinical benefit of targeted and immune checkpoint blockade-based therapies in melanoma, resistance inevitably develops. We show cytoskeletal remodeling and changes in expression and activity of ROCK-myosin II pathway during acquisition of resistance to MAPK inhibitors. MAPK regulates myosin
Jing-Ti Deng et al.
PloS one, 14(12), e0226406-e0226406 (2019-12-14)
Myosin regulatory light chain (LC20) phosphorylation plays an important role in vascular smooth muscle contraction and cell migration. Ca2+/calmodulin-dependent myosin light chain kinase (MLCK) phosphorylates LC20 (its only known substrate) exclusively at S19. Rho-associated kinase (ROCK) and zipper-interacting protein kinase
Scott P Davies et al.
Nature communications, 15(1), 853-853 (2024-01-30)
The presence of CD8+ T cells in the cytoplasm of biliary epithelial cells (BEC) has been correlated with biliary damage associated with primary biliary cholangitis (PBC). Here, we characterise the mechanism of CD8+ T cell invasion into BEC. CD8+ T
Kristina Dobrindt et al.
Complex psychiatry, 6(3-4), 68-82 (2021-12-10)
Schizophrenia (SZ) is a common and debilitating psychiatric disorder with limited effective treatment options. Although highly heritable, risk for this polygenic disorder depends on the complex interplay of hundreds of common and rare variants. Translating the growing list of genetic

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