Dalpiciclib [1637781-04-4]

Cat# HY-114338-50mg

Size : 50mg

Brand : MedChemExpress

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Description

Dalpiciclib (SHR-6390) is an orally active and highly selective inhibitor of CDK4 and 6 with IC50 values of 12.4 nM and 9.9 nM, respectively[1][2]. Dalpiciclib shows antitumor activity against breast cancer and esophageal squamous cell carcinoma[1][2][3][4].

IC50 & Target[1]

CDK4

12.4 nM (IC50)

CDK6

9.9 nM (IC50)

In Vitro

Dalpiciclib (0-4 μM, 72 h) inhibits cell proliferation in a dose-dependent manner[3].
Dalpiciclib (0-10 μM, 6 d) inhibits the proliferation of retinoblastoma-positive tumor cell lines[4].

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

Cell Proliferation Assay[3]

Cell Line: Eca 109, Eca 9706, and KYSE-510 ESCC cell lines
Concentration: 0-4 μM
Incubation Time: 72  hours
Result: Inhibited cell proliferation in a dose-dependent manner, with Eca 109 being the relative sensitive one and Eca 9706 being the relative resistant one.

Cell Viability Assay[4]

Cell Line: MCF7, MCF7/TR, BT-474/T cell lines
Concentration: 0-10 μM
Incubation Time: 6  days
Result: Inhibited MCF7/TR cells, parental MCF7 cells and BT-474/T resistant cells with the IC50 values of 229.5, 115.4 and 210.7 nM, respectively.
In Vivo

Dalpiciclib (oral gavage; 150 mg/kg; once weekly; 3 weeks) shows antitumor activity against ESCC xenografts[3].
Dalpiciclib combined with Paclitaxel (PTX) or Cisplatin (CDDP) offer synergistic inhibitory effects in ESCC xenografts[3].
Dalpiciclib (oral gavage; 37.5 mg/kg, 75 mg/kg, 150 mg/kg; once daily; 30 days) shows antitumor activity in human xenograft models [4].

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

Animal Model: NOD/SCID mice (ESCC PDXs models) [3]
Dosage: 150 mg/kg
Administration: Oral gavage; 150 mg/kg; once weekly; 3 weeks
Result: Suppressed the growth of tumor.
Animal Model: 5-week-old female Balb/cA-nude mice subcutaneously inoculated MCF7/ARO, COLO 205 and U87MG[4]
Dosage: 37.5 mg/kg, 75 mg/kg, 150 mg/kg
Administration: Oral gavage; 37.5 mg/kg, 75 mg/kg, 150 mg/kg; once daily; 30 days
Result: Caused regression of all tumor xenografts at the highest dose tested.
Clinical Trial
Molecular Weight

446.54

Formula

C25H30N6O2

CAS No.
Appearance

Solid

Color

Off-white to light yellow

SMILES

O=C1C(C(C)=O)=C(C)C2=C(N1C3CCCC3)N=C(NC4=NC=C(C5CCNCC5)C=C4)N=C2

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 : 50 mg/mL (111.97 mM; ultrasonic and warming and adjust pH to 7 with 1 M HCL and heat to 60°C; 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 2.2394 mL 11.1972 mL 22.3944 mL
5 mM 0.4479 mL 2.2394 mL 4.4789 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.

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 (5.60 mM); Clear solution; Need ultrasonic

    This protocol yields a clear solution of 2.5 mg/mL.

    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% (20% SBE-β-CD in Saline)

    Solubility: 2.5 mg/mL (5.60 mM); Clear solution; Need ultrasonic

    This protocol yields a clear solution of 2.5 mg/mL.

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.0 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.
Purity & Documentation
References