2. Autophagy
  3. Autophagy Atg4
  4. NSC 185058

NSC 185058 is an inhibitor of ATG4B, a major cysteine protease. Inhibition of ATG4B using NSC 185058 markedly attenuates autophagic activity.

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

NSC 185058 Chemical Structure

NSC 185058 Chemical Structure

CAS No. : 39122-38-8

Size Price Stock Quantity
1 mg USD 109 In-stock
5 mg USD 230 In-stock
10 mg USD 370 In-stock
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Based on 1 publication(s) in Google Scholar

NSC 185058 Related Antibodies

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Description

NSC 185058 is an inhibitor of ATG4B, a major cysteine protease. Inhibition of ATG4B using NSC 185058 markedly attenuates autophagic activity[1].

IC50 & Target

ATG4B[1]
Autophagy[1]
In Vivo

NSC185058 is an ATG4B antagonist. ATG4B stimulates autophagy by promoting autophagosome formation through reversible modification of ATG8. Inclusion of the ATG4B inhibitor NSC185058 enhances the anti-tumor activity of radiation therapy (RT). NSC185058 decreases glioblastoma (GBM) cell tumorigenicity, and enhances the anti-tumor activity of RT when applied to orthotopic GBM xenograft models[1].

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

215.27

Formula

C11H9N3S
CAS No.
Appearance

Solid

Color

Light yellow to yellow

SMILES

S=C(C1=NC=CC=C1)NC2=NC=CC=C2
Shipping

Room temperature in continental US; may vary elsewhere.
Storage

4°C, protect from light

*In solvent : -80°C, 6 months; -20°C, 1 month (protect from light)

Solvent & Solubility
In Vitro: 

DMSO : ≥ 125 mg/mL (580.67 mM; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

*"≥" means soluble, but saturation unknown.

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 4.6453 mL 23.2266 mL 46.4533 mL
5 mM 0.9291 mL 4.6453 mL 9.2907 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 (protect from light). 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
×
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: ≥ 2.08 mg/mL (9.66 mM); Clear solution

    This protocol yields a clear solution of ≥ 2.08 mg/mL (saturation unknown).

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (20.8 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% (20% SBE-β-CD in Saline)

    Solubility: ≥ 2.08 mg/mL (9.66 mM); Clear solution

    This protocol yields a clear solution of ≥ 2.08 mg/mL (saturation unknown).

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (20.8 mg/mL) to 900 μL 20% SBE-β-CD in Saline, and mix evenly.

    Preparation of 20% SBE-β-CD in Saline (4°C, storage for one week): 2 g SBE-β-CD powder is dissolved in 10 mL Saline, completely dissolve until clear.
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).

*In solvent : -80°C, 6 months; -20°C, 1 month (protect from light)

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
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 (protect from light). 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 4.6453 mL 23.2266 mL 46.4533 mL 116.1332 mL
5 mM 0.9291 mL 4.6453 mL 9.2907 mL 23.2266 mL
10 mM 0.4645 mL 2.3227 mL 4.6453 mL 11.6133 mL
15 mM 0.3097 mL 1.5484 mL 3.0969 mL 7.7422 mL
20 mM 0.2323 mL 1.1613 mL 2.3227 mL 5.8067 mL
25 mM 0.1858 mL 0.9291 mL 1.8581 mL 4.6453 mL
30 mM 0.1548 mL 0.7742 mL 1.5484 mL 3.8711 mL
40 mM 0.1161 mL 0.5807 mL 1.1613 mL 2.9033 mL
50 mM 0.0929 mL 0.4645 mL 0.9291 mL 2.3227 mL
60 mM 0.0774 mL 0.3871 mL 0.7742 mL 1.9356 mL
80 mM 0.0581 mL 0.2903 mL 0.5807 mL 1.4517 mL
100 mM 0.0465 mL 0.2323 mL 0.4645 mL 1.1613 mL
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NSC 185058 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:

NSC 18505839122-38-8NSC185058NSC-185058AutophagyAtg4Autophagy-related 4Inhibitorinhibitorinhibit

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