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203391

Sigma-Aldrich

(-)-Blebbistatin

The active enantiomer of (±)-Blebbistatin that accounts for the inhibitory activity towards ATPase and myosin II-dependent cellular processes.

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Synonym(s):
(-)-Blebbistatin
Empirical Formula (Hill Notation):
C18H16N2O2
CAS Number:
856925-71-8
Molecular Weight:
292.33
MDL number:
MFCD08460907

Quality Level

100

Assay

≥98% (HPLC)

form

solid

potency

2 μM IC50

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/t18-/m1/s1

InChI key

LZAXPYOBKSJSEX-GOSISDBHSA-N

General description

The active enantiomer of (±)-Blebbistatin (Cat. No. 203390) that accounts for the inhibitory activity towards ATPase (IC50 = ~2 µM) and myosin II-dependent cellular processes. Also reported to potently inhibit the actomyosin ATPase activities of expressed smooth muscle myosin IIA (SMA) and smooth muscle myosin IIB (SMB) smooth muscle myosin II heavy-chain isoforms (IC50 ~3 µM).
The active enantiomer of (±)-Blebbistatin (Cat. No. 203390) that accounts for the inhibitory activity toward ATPase (IC50 ~2 µM) and myosin II-dependent cellular processes. Also reported to potently inhibit the actomyosin ATPase activities of expressed smooth muscle myosin IIA (SMA) and smooth muscle myosin IIB (SMB) smooth muscle myosin II heavy-chain isoforms (IC50 ~3 µM).

Biochem/physiol Actions

Cell permeable: no
Product does not compete with ATP.
Reversible: no

Packaging

Packaged under inert gas

Warning

Toxicity: Harmful & Carcinogenic / Teratogenic (E)

Reconstitution

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

Other Notes

Eddinger, T.J. et al. 2007. J. Pharmacol. Exp. Ther.320, 865.
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.

Legal Information

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

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

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