Inobrodib (CCS-1477)

Catalog No.S9667 Batch:S966703

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Technical Data

Formula

C30H32F2N4O3
Molecular Weight 534.60 CAS No. 2222941-37-7
Solubility (25°C)* In vitro DMSO 100 mg/mL (187.05 mM)
Ethanol 25 mg/mL (46.76 mM)
Water Insoluble
In Vivo (Add solvents to the product individually and in order.)
Clear solution
5%DMSO 40%PEG300 5%Tween80 50%ddH2O

Validated by Selleck labs. Should you need adjustments to this formulation, contact our sales team for custom testing.

 5mg/ml (9.35mM) Taking the 1 mL working solution as an example, add 50 μL of 100 mg/ml clarified DMSO stock solution to 400 μL of PEG300, mix evenly to clarify it; add 50 μL of Tween80 to the above system, mix evenly to clarify; then continue to add 500 μL of ddH2O to adjust the volume to 1 mL. The mixed solution should be used immediately for optimal results. 
Clear solution
5% DMSO 95% Corn oil

Validated by Selleck labs. Should you need adjustments to this formulation, contact our sales team for custom testing.

 0.25mg/ml (0.47mM) Taking the 1 mL working solution as an example, add 50 μL of 5 mg/ml clear DMSO stock solution to 950 μL of corn oil and mix evenly. The mixed solution should be used immediately for optimal results. 
* <1 mg/ml means slightly soluble or insoluble.
* Please note that Selleck tests the solubility of all compounds in-house, and the actual solubility may differ slightly from published values. This is normal and is due to slight batch-to-batch variations.
* Room temperature shipping (Stability testing shows this product can be shipped without any cooling measures.)

Preparing Stock Solutions

Biological Activity

Description Inobrodib (CCS1477; CBP-IN-1; CBP/p300-IN-4) is a potent and selective inhibitor of p300/CBP bromodomain. CCS1477 works by inhibiting the expression and function of the Androgen Receptor (AR), as well as inhibiting c-Myc.
Targets
p300/CBP bromodomain androgen receptor c-Myc
In vitro

CCS1477 inhibits cell proliferation in prostate cancer cell lines and decreases AR- and C-MYC–regulated gene expression.
In Vivo

In AR-SV–driven models, CCS1477 has antitumor activity, regulating AR and C-MYC signaling. Early clinical studies suggest that CCS1477 modulates KLK3 blood levels and regulates CRPC biopsy biomarker expression.

Protocol (from reference)

Animal Study:

[2]
  • Animal Models

    male CD1 mice

  • Dosages

    3 mg/kg, 30 mg/kg

  • Administration

    Oral gavage

References

  • https://cancerres.aacrjournals.org/content/79/13_Supplement/3826
  • https://pubmed.ncbi.nlm.nih.gov/33431496/

Sellecks Inobrodib (CCS-1477) Has Been Cited by 5 Publications

Targeting histone H2B acetylated enhanceosomes via p300/CBP degradation in prostate cancer [ Nat Genet, 2025, 57(10):2468-2481] PubMed: 41044247
The ESCRT protein CHMP5 promotes T cell leukemia by enabling BRD4-p300-dependent transcription [ Nat Commun, 2025, 16(1):4133] PubMed: 40319015
HIV-1 accessory protein Vpr possesses a cryptic p300-dependent transcription-promoting activity that is blocked by histone deacetylases in CD4+ T cells [ PLoS Pathog, 2025, 21(9):e1013073] PubMed: 40901928
p300/CBP degradation is required to disable the active AR enhanceosome in prostate cancer [ bioRxiv, 2024, 2024.03.29.587346] PubMed: 38586029
Characterization of molecular mechanisms driving Merkel cell polyomavirus oncogene transcription and tumorigenic potential [ PLoS Pathog, 2023, 19(8):e1011598] PubMed: 37647312

RETURN POLICY
Selleck Chemical’s Unconditional Return Policy ensures a smooth online shopping experience for our customers. If you are in any way unsatisfied with your purchase, you may return any item(s) within 7 days of receiving it. In the event of product quality issues, either protocol related or product related problems, you may return any item(s) within 365 days from the original purchase date. Please follow the instructions below when returning products.

SHIPPING AND STORAGE
Selleck products are transported at room temperature. If you receive the product at room temperature, please rest assured, the Selleck Quality Inspection Department has conducted experiments to verify that the normal temperature placement of one month will not affect the biological activity of powder products. After collecting, please store the product according to the requirements described in the datasheet. Most Selleck products are stable under the recommended conditions.

NOT FOR HUMAN, VETERINARY DIAGNOSTIC OR THERAPEUTIC USE.