2. GPCR/G Protein
  3. Guanylate Cyclase
  4. Ataciguat

Ataciguat (HMR-1766) is a nitric oxide-independent soluble guanylate cyclase (sGC) activator. Ataciguat is able to activate the ferric heme-iron redox form of sGC that stimulate the production of cyclic GMP (cGMP). Ataciguat exhibits vasodilator effects.

For research use only. We do not sell to patients.

Ataciguat Chemical Structure

Ataciguat Chemical Structure

CAS No. : 254877-67-3

Size Price Stock Quantity
1 mg USD 55 In-stock
5 mg USD 115 In-stock
10 mg USD 180 In-stock
25 mg USD 360 In-stock
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Based on 1 publication(s) in Google Scholar

Ataciguat Related Antibodies

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  • Biological Activity

  • Purity & Documentation

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Description

Ataciguat (HMR-1766) is a nitric oxide-independent soluble guanylate cyclase (sGC) activator. Ataciguat is able to activate the ferric heme-iron redox form of sGC that stimulate the production of cyclic GMP (cGMP). Ataciguat exhibits vasodilator effects[1][2][3].

IC50 & Target

soluble guanylate cyclase[1]
In Vitro

Ataciguat (1-100 μM) induces the relaxation in aortic rings or coronary rings[2].
Ataciguat (0.1-10 μM; 30 min) increases NO production in HUVEC cells[2].
Ataciguat (1 nM-100 μM) induces concentration-dependent relaxations in sphincter of Oddi (SO) rings pre-contracted by Carbachol[3].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

Ataciguat Related Antibodies
Clinical Trial
Molecular Weight

576.49

Formula

C21H19Cl2N3O6S3
CAS No.
Appearance

Solid

Color

White to off-white

SMILES

O=C(NC1=CC=C(S(=O)(N2CCOCC2)=O)C=C1)C3=CC(Cl)=CC=C3NS(=O)(C4=CC=C(Cl)S4)=O
Shipping

Room temperature in continental US; may vary elsewhere.
Storage
Powder -20°C 3 years
4°C 2 years
In solvent -80°C 6 months
-20°C 1 month
Solvent & Solubility
In Vitro: 

DMSO : 100 mg/mL (173.46 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 1.7346 mL 8.6731 mL 17.3463 mL
5 mM 0.3469 mL 1.7346 mL 3.4693 mL
View the Complete Stock Solution Preparation Table

* Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

  • Molarity Calculator

  • Dilution Calculator

Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

Mass
=
Concentration
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Volume
×
Molecular Weight *

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

This equation is commonly abbreviated as: C1V1 = C2V2

Concentration (start)

C1

×
Volume (start)

V1

=
Concentration (final)

C2

×
Volume (final)

V2

In Vivo:

Select the appropriate dissolution method based on your experimental animal and administration route.

For the following dissolution methods, please ensure to first prepare a clear stock solution using an In Vitro approach and then sequentially add co-solvents:
To ensure reliable experimental results, the clarified stock solution can be appropriately stored based on storage conditions. As for the working solution for in vivo experiments, it is recommended to prepare freshly and use it on the same day.
The percentages shown for the solvents indicate their volumetric ratio in the final prepared solution. If precipitation or phase separation occurs during preparation, heat and/or sonication can be used to aid dissolution.

  • Protocol 1

    Add each solvent one by one:  10% DMSO    40% PEG300    5% Tween-80    45% Saline

    Solubility: ≥ 2.5 mg/mL (4.34 mM); Clear solution

    This protocol yields a clear solution of ≥ 2.5 mg/mL (saturation unknown).

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.0 mg/mL) to 400 μL PEG300, and mix evenly; then add 50 μL Tween-80 and mix evenly; then add 450 μL Saline to adjust the volume to 1 mL.

    Preparation of Saline: Dissolve 0.9 g sodium chloride in ddH₂O and dilute to 100 mL to obtain a clear Saline solution.
  • Protocol 2

    Add each solvent one by one:  10% DMSO    90% Corn Oil

    Solubility: ≥ 2.5 mg/mL (4.34 mM); Clear solution

    This protocol yields a clear solution of ≥ 2.5 mg/mL (saturation unknown). If the continuous dosing period exceeds half a month, please choose this protocol carefully.

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.0 mg/mL) to 900 μL Corn oil, and mix evenly.

In Vivo Dissolution Calculator
Please enter the basic information of animal experiments:

Dosage

mg/kg

Animal weight
(per animal)

g

Dosing volume
(per animal)

μL

Number of animals

Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.
Please enter your animal formula composition:
%
DMSO +
% 
+
%
Tween-80 +
%
Saline
Recommended: Keep the proportion of DMSO in working solution below 2% if your animal is weak.
The co-solvents required include: DMSO, . All of co-solvents are available by MedChemExpress (MCE). , Tween 80. All of co-solvents are available by MedChemExpress (MCE).
Calculation results:
Working solution concentration: mg/mL
Method for preparing stock solution: mg drug dissolved in μL  DMSO (Stock solution concentration: mg/mL).
The concentration of the stock solution you require exceeds the measured solubility. The following solution is for reference only. If necessary, please contact MedChemExpress (MCE).
Method for preparing in vivo working solution for animal experiments: Take μL DMSO stock solution, add μL . μL , mix evenly, next add μL Tween 80, mix evenly, then add μL Saline.
 If the continuous dosing period exceeds half a month, please choose this protocol carefully.
Please ensure that the stock solution in the first step is dissolved to a clear state, and add co-solvents in sequence. You can use ultrasonic heating (ultrasonic cleaner, recommended frequency 20-40 kHz), vortexing, etc. to assist dissolution.
Purity & Documentation

Purity: 99.40%

SDS (392 KB)

COA (254 KB) HNMR (267 KB) LCMS (93 KB)

Handling Instructions (2659 KB)
References

Complete Stock Solution Preparation Table

* Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

Optional Solvent Concentration Solvent Mass 1 mg 5 mg 10 mg 25 mg
DMSO 1 mM 1.7346 mL 8.6731 mL 17.3463 mL 43.3657 mL
5 mM 0.3469 mL 1.7346 mL 3.4693 mL 8.6731 mL
10 mM 0.1735 mL 0.8673 mL 1.7346 mL 4.3366 mL
15 mM 0.1156 mL 0.5782 mL 1.1564 mL 2.8910 mL
20 mM 0.0867 mL 0.4337 mL 0.8673 mL 2.1683 mL
25 mM 0.0694 mL 0.3469 mL 0.6939 mL 1.7346 mL
30 mM 0.0578 mL 0.2891 mL 0.5782 mL 1.4455 mL
40 mM 0.0434 mL 0.2168 mL 0.4337 mL 1.0841 mL
50 mM 0.0347 mL 0.1735 mL 0.3469 mL 0.8673 mL
60 mM 0.0289 mL 0.1446 mL 0.2891 mL 0.7228 mL
80 mM 0.0217 mL 0.1084 mL 0.2168 mL 0.5421 mL
100 mM 0.0173 mL 0.0867 mL 0.1735 mL 0.4337 mL
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Ataciguat Related Classifications

Help & FAQs
  • Do most proteins show cross-species activity?

    Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

Keywords:

Ataciguat254877-67-3HMR-1766HMR1766HMR 1766Guanylate CyclasesolubleguanylatecyclasesGCcGMPvasodilatorInhibitorinhibitorinhibit

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