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(-)-Blebbistatin Myosin II ATPase inhibitor

Cat.No.S7099

(-)-Blebbistatin ((S)-(-)-Blebbistatin) is a cell-permeable inhibitor for non muscle myosin II ATPase with IC50 of ~2 μM in cell-free assays, does not inhibit myosin light chain kinase, inhibits contraction of the cleavage furrow without disrupting mitosis or contractile ring assembly.

(-)-Blebbistatin ATPase inhibitor Chemical Structure

Chemical Structure

Molecular Weight: 292.33

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Quality Control

Batch: Purity: 99.82%

99.82

Related Targets	CFTR CRM1 CD markers AChR Calcium Channel Sodium Channel Potassium Channel GABA Receptor TRP Channel GluR
Other ATPase Inhibitors	Thapsigargin Brefeldin A (BFA chemical) CB-5083 Golgicide A Sodium orthovanadate Bufalin CDN1163 Ginsenoside Rb1 Oligomycin BTB06584

Q&A of (-)-Blebbistatin: Insights Rooted in Extensive Publications, Every Answer Cited

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Solubility in DMSO or Water

In vitro
Batch:

DMSO : 39 mg/mL (133.41 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO.)

Water : Insoluble

Ethanol : Insoluble

The solubility data above are all experimental results (not literature values).

DMSO : 58 mg/mL (198.4 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO.)

Water : Insoluble

Ethanol : Insoluble

The solubility data above are all experimental results (not literature values).

DMSO : 58 mg/mL (198.4 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO.)

Water : Insoluble

Ethanol : Insoluble

The solubility data above are all experimental results (not literature values).

DMSO : 58 mg/mL (198.4 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO.)

Water : Insoluble

Ethanol : Insoluble

The solubility data above are all experimental results (not literature values).

DMSO : 58 mg/mL (198.4 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO.)

Water : Insoluble

Ethanol : Insoluble

The solubility data above are all experimental results (not literature values).

Molarity Calculator

Mass	Concentration	Volume	Molecular Weight
Mass value Mass unit	Concentration value Concentration unit	Volume value Volume unit	Molecular weight (g/mol)

Dilution Calculator Molecular Weight Calculator

In vivo batch selection In vivo Batch:
Homogeneous suspension	CMC-NA	≥5mg/ml	Taking the 1 mL working solution as an example, add 5 mg of this product to 1 ml of CMC-Na solution, mix evenly to obtain a homogeneous suspension with a final concentration of 5 mg/ml.
Homogeneous suspension	CMC-NA	≥5mg/ml	Taking the 1 mL working solution as an example, add 5 mg of this product to 1 ml of CMC-Na solution, mix evenly to obtain a homogeneous suspension with a final concentration of 5 mg/ml.
Homogeneous suspension	CMC-NA	≥5mg/ml	Taking the 1 mL working solution as an example, add 5 mg of this product to 1 ml of CMC-Na solution, mix evenly to obtain a homogeneous suspension with a final concentration of 5 mg/ml.
Homogeneous suspension	CMC-NA	≥5mg/ml	Taking the 1 mL working solution as an example, add 5 mg of this product to 1 ml of CMC-Na solution, mix evenly to obtain a homogeneous suspension with a final concentration of 5 mg/ml.
Homogeneous suspension	CMC-NA	≥5mg/ml	Taking the 1 mL working solution as an example, add 5 mg of this product to 1 ml of CMC-Na solution, mix evenly to obtain a homogeneous suspension with a final concentration of 5 mg/ml.

In vivo Formulation Calculator (Clear solution)

Step 1: Enter information below (Recommended: An additional animal making an allowance for loss during the experiment)

Dosage: mg/kg

Average weight of animals: g

Dosing volume per animal: μL

Number of animals:

Step 2: Enter the in vivo formulation (This is only the calculator, not formulation. Please contact us first if there is no in vivo formulation at the solubility Section.)

% DMSO

%

% Tween 80

% ddH₂O

% DMSO

+

%

Calculation results:

Working concentration: mg/ml;

Method for preparing DMSO master liquid: mg drug pre-dissolved in μL DMSO ( Master liquid concentration mg/mL, Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug. )

Method for preparing in vivo formulation: Take μL DMSO master liquid, next addμL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH₂O, mix and clarify.

Method for preparing in vivo formulation: Take μL DMSO master liquid, next add μL Corn oil, mix and clarify.

Note: 1. Please make sure the liquid is clear before adding the next solvent.
2. Be sure to add the solvent(s) in order. You must ensure that the solution obtained, in the previous addition, is a clear solution before proceeding to add the next solvent. Physical methods such
as vortex, ultrasound or hot water bath can be used to aid dissolving.

Read more about (-)-Blebbistatin solubility in DMSO or water

Search directly for a cell line, or select a cell line to find matched working concentrations

Read more about (-)-Blebbistatin working concentrations for cell culture treatment

(-)-Blebbistatin is a potent inhibitor of rabbit skeletal muscle myosin II (2160 nM), Myh7b (360 nM), β-cardiac myosin S1 (1120 nM), rabbit skeletal muscle myosin S1 (110 nM), Dictyostelium discoideum myosin II motor domain (3900 nM), Rabbit fast muscle actin and HMM (1000000-5000000 nM), NMIIA. (-)-Blebbistatin exhibits the greatest inhibitory potency toward rabbit skeletal muscle myosin S1 (IC50 = 110 nM).

Read more about selectivity & specificity

Mechanism of Action

Information	(-)-Blebbistatin is a potent, selective myosin II ATPase inhibitor. It affects ROCK/MLC and Wnt signaling pathways by blocking actomyosin cross-bridge cycling and reducing cytoskeletal tension, effectively suppressing cell migration, muscle contraction, and viral entry.
Read more about (-)-Blebbistatin IC50 for cell-based and cell-free assays
Primary Applications and Mechanism of Action

Read more about (-)-Blebbistatin Mechanism of Action

Chemical Information, Storage & Stability

Molecular Weight	292.33	Formula	C₁₈H₁₆N₂O₂	Storage (From the date of receipt)	3 years -20°C(in the dark) powder
CAS No.	856925-71-8	Download SDF		Storage of Stock Solutions	1 year-80°Cin solvent 1 month-20°Cin solvent
Synonyms	(S)-(-)-Blebbistatin			Smiles	CC1=CC2=C(C=C1)N=C3C(C2=O)(CCN3C4=CC=CC=C4)O

Read more about storage & stability

Read more comparative analysis about (-)-Blebbistatin

Tech Support

Handling Instructions

Tel: +1-832-582-8158 Ext:3

If you have any other enquiries, please leave a message.

Dilution Calculator

Calculate the dilution required to prepare a stock solution. The Selleck dilution calculator is based on the following equation:

Concentration _(start) x Volume _(start) = Concentration _(final) x Volume _(final)

This equation is commonly abbreviated as: C1V1 = C2V2 ( Input Output )

*When preparing stock solutions always use the batch-specific molecular weight of the product found on the vial label and MSDS / COA (available online).

The Serial Dilution Calculator Equation

Serial Dilutions

Concentration (start):

Dilution-folds:

Computed Result

C1=C0/X	C1:		LOG(C1):
C2=C1/X	C2:		LOG(C2):
C3=C2/X	C3:		LOG(C3):
C4=C3/X	C4:		LOG(C4):
C5=C4/X	C5:		LOG(C5):
C6=C5/X	C6:		LOG(C6):
C7=C6/X	C7:		LOG(C7):
C8=C7/X	C8:		LOG(C8):