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DDO-4033

Cat No.:V133350 Purity: ≥98%
DDO-4033 is a SPOP inhibitor (IC50 = 16.9 μM, Kd = 15.1 μM).
DDO-4033
DDO-4033 Chemical Structure Product category: YAP
This product is for research use only, not for human use. We do not sell to patients.
Size Price Stock Qty
5mg
10mg
50mg
Other Sizes
Official Supplier of:
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Product Description
DDO-4033 is a SPOP inhibitor (IC50 = 16.9 μM, Kd = 15.1 μM). DDO-4033 inhibits the malignant migration, invasion, and proliferation of clear cell renal cell carcinoma (ccRCC) cell lines. DDO-4033 blocks the binding of SPOP to its substrate LATS1, inhibits LATS1 polyubiquitination and subsequent degradation, and upregulates LATS1 expression. DDO-4033 exhibits promising antitumor activity and holds promise for applications in renal cell carcinoma research.
Biological Activity I Assay Protocols (From Reference)
ln Vitro
DDO-4033 showed antiproliferative activity against 786-O, A498, A549 and HK-2 cells, with IC50 values of 1.1, 0.68, 19.96 and 18.78 μM, respectively, but its antiproliferative activity against HepG2 cells was weak, with IC50 > 50 μM [1]. DDO-4033 (0-3 μM, 0-32 h) could inhibit SPOP-mediated LATS1 ubiquitination and degradation, and downregulate the mRNA levels of CTGF and CYR61 genes in A498 cells [1]. DDO-4033 (0-5 μM, 24 h) could inhibit colony formation of A498 cells and impair their migration ability [1]. DDO-4033 showed affinity for SPOP under MST, BLI and ITC detection, with Kd values of 15.1, 4.96 and 4.94 μM, respectively [1].
ln Vivo
DDO-4033 (10-50 mg/kg, intratumoral (it) and peritumoral (PTI), once daily for 3 weeks) inhibited tumor growth, upregulated LATS1, and activated the Hippo pathway in the A498-Luc xenograft BALB/c nude mouse model [1].
Cell Assay
Western Blot Analysis [1]
Cell Types: A498 cells
Tested Concentrations: 0 μM, 0.12 μM, 0.25 μM, 0.5 μM, 1 μM
Incubation Duration: 0 h, 1 h, 2 h, 4 h, 8 h, 12 h, 16 h, 32 h
Experimental Results: Inhibited LATS1 ubiquitination, prolonged the half-life of LATS1, and led to LATS1 accumulation.
Cell migration assay [1]
Cell Types: A498 cells
Tested Concentrations: 0 μM, 0.5 μM, 1 μM
Incubation Duration: 24 hours
Experimental Results: Inhibited colony formation and impaired cell migration ability.
Animal Protocol
Animal/Disease Models:A498-Luc (1 × 10⁷ cells, containing 25% Matrigel, subcutaneous injection) xenograft BALB/c nude mouse (female, 18-20 g, 4-6 weeks old) model [1]
Doses: 10 mg/kg, 50 mg/kg
Route of Administration: Once daily for 3 weeks
Experimental Results: Inhibited tumor growth, upregulated LATS1 and activated the Hippo pathway, with low toxicity and no alteration of organ tissues.
References

[1]. Discovery of 2-Pyrazolylpyrimidinone Derivatives as New SPOP Inhibitors for Renal Cell Carcinoma Therapy. J Med Chem. 2025 Jul 24;68(14):14945-14961.

These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C20H18N6O4
Molecular Weight
406.39
Appearance
White to off-white solid
SMILES
C#CC1=C([N+]([O-])=O)C=C(C(NC2=CC(C)=NN2C(N3)=NC(CCC)=CC3=O)=O)C=C1
HS Tariff Code
2934.99.9001
Storage

Powder      -20°C    3 years

                     4°C     2 years

In solvent   -80°C    6 months

                  -20°C    1 month

Shipping Condition
Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)
Solubility Data
Solubility (In Vitro)
DMSO : ~25 mg/mL (~61.52 mM; ultrasonic and warming and heat to 60°C)
Solubility (In Vivo)
Solubility in Formulation 1: ≥ 2.5 mg/mL (6.15 mM) (saturation unknown) in 10% DMSO + 40% PEG300 + 5% Tween-80 + 45% Saline (add these co-solvents sequentially from left to right, and one by one), Suspended solution.
For example, if 1 mL of working solution is to be prepared, you canAdd 100 μL of DMSO stock solution (25.0 mg/mL) to 400 μL of PEG300 and mix well; then add 50 μL of Tween-80 and mix well; finally add 450 μL of physiological saline and adjust the volume to 1 mL. Preparation of physiological saline: Dissolve 0.9 g of sodium chloride in double-distilled water and dilute to 100 mL to obtain clear physiological saline.
Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH₂ O to obtain a clear solution.

 (Please use freshly prepared in vivo formulations for optimal results.)
Preparing Stock Solutions 1 mg 5 mg 10 mg
1 mM 2.4607 mL 12.3035 mL 24.6069 mL
5 mM 0.4921 mL 2.4607 mL 4.9214 mL
10 mM 0.2461 mL 1.2303 mL 2.4607 mL

*Note: Please select an appropriate solvent for the preparation of stock solution based on your experiment needs. For most products, DMSO can be used for preparing stock solutions (e.g. 5 mM, 10 mM, or 20 mM concentration); some products with high aqueous solubility may be dissolved in water directly. Solubility information is available at the above Solubility Data section. Once the stock solution is prepared, aliquot it to routine usage volumes and store at -20°C or -80°C. Avoid repeated freeze and thaw cycles.

Calculator

Molarity Calculator allows you to calculate the mass, volume, and/or concentration required for a solution, as detailed below:

  • Calculate the Mass of a compound required to prepare a solution of known volume and concentration
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An example of molarity calculation using the molarity calculator is shown below:
What is the mass of compound required to make a 10 mM stock solution in 5 ml of DMSO given that the molecular weight of the compound is 350.26 g/mol?
  • Enter 350.26 in the Molecular Weight (MW) box
  • Enter 10 in the Concentration box and choose the correct unit (mM)
  • Enter 5 in the Volume box and choose the correct unit (mL)
  • Click the “Calculate” button
  • The answer of 17.513 mg appears in the Mass box. In a similar way, you may calculate the volume and concentration.

Dilution Calculator allows you to calculate how to dilute a stock solution of known concentrations. For example, you may Enter C1, C2 & V2 to calculate V1, as detailed below:

What volume of a given 10 mM stock solution is required to make 25 ml of a 25 μM solution?
Using the equation C1V1 = C2V2, where C1=10 mM, C2=25 μM, V2=25 ml and V1 is the unknown:
  • Enter 10 into the Concentration (Start) box and choose the correct unit (mM)
  • Enter 25 into the Concentration (End) box and select the correct unit (mM)
  • Enter 25 into the Volume (End) box and choose the correct unit (mL)
  • Click the “Calculate” button
  • The answer of 62.5 μL (0.1 ml) appears in the Volume (Start) box
g/mol

Molecular Weight Calculator allows you to calculate the molar mass and elemental composition of a compound, as detailed below:

Note: Chemical formula is case sensitive: C12H18N3O4  c12h18n3o4
Instructions to calculate molar mass (molecular weight) of a chemical compound:
  • To calculate molar mass of a chemical compound, please enter the chemical/molecular formula and click the “Calculate’ button.
Definitions of molecular mass, molecular weight, molar mass and molar weight:
  • Molecular mass (or molecular weight) is the mass of one molecule of a substance and is expressed in the unified atomic mass units (u). (1 u is equal to 1/12 the mass of one atom of carbon-12)
  • Molar mass (molar weight) is the mass of one mole of a substance and is expressed in g/mol.
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Reconstitution Calculator allows you to calculate the volume of solvent required to reconstitute your vial.

  • Enter the mass of the reagent and the desired reconstitution concentration as well as the correct units
  • Click the “Calculate” button
  • The answer appears in the Volume (to add to vial) box
In vivo Formulation Calculator (Clear solution)
Step 1: Enter information below (Recommended: An additional animal to make allowance for loss during the experiment)
Step 2: Enter in vivo formulation (This is only a calculator, not the exact formulation for a specific product. Please contact us first if there is no in vivo formulation in the solubility section.)
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Calculation results

Working concentration mg/mL;

Method for preparing DMSO stock solution mg drug pre-dissolved in μL DMSO (stock solution 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 stock solution, next add μL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O,mix and clarify.

(1) Please be sure that the solution is clear before the addition of next solvent. Dissolution methods like vortex, ultrasound or warming and heat may be used to aid dissolving.
             (2) Be sure to add the solvent(s) in order.

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