CK2 inhibitor 2

Cat No.:V52245 Purity: ≥98%
CK2 inhibitor 2 is a specific and orally bioactive CK2 inhibitor (antagonist) with IC50 of 0.66 nM.
CK2 inhibitor 2 Chemical Structure CAS No.: 2641079-92-5
Product category: Casein Kinase
This product is for research use only, not for human use. We do not sell to patients.
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Product Description
CK2 inhibitor 2 is a specific and orally bioactive CK2 inhibitor (antagonist) with IC50 of 0.66 nM. CK2 inhibitor 2 shows high selectivity for Clk2 (IC50=32.69 nM)/CK2. CK2 inhibitor 2 has good antiproliferation and anti-tumor activities.
Biological Activity I Assay Protocols (From Reference)
Targets
CK2 0.66 nM (IC50)
ln Vitro
CK2 inhibitor 2 (compound 1c) has strong antiproliferative properties against PC-3, HCT-116, MCF-7, HT-29, T24, and LO2 cells. Its IC50 values are 4.53 μM, 3.07 μM, 7.50 μM, 5.18 μM, 6.10 μM, and 96.68 μM, in that order[1]. HCT-116 cells experience dose-dependent apoptosis when exposed to CK2 inhibitor 2 (5–20 μM; 24 h). In HCT-116 cells, CK2 inhibitor 2 dose-dependently decreases the expression of p-Akt1S129 and p-Cdc37S13[1]. The exogenous ALDH1A1 enzyme activity is dose-dependently inhibited by CK2 inhibitor 2 (1-500 nM), with an IC50 of 0.10 μM[1]. In HCT-116 cells, CK2 inhibitor 2 (5-20 μM; 24 h) suppresses ALDH1A1 transcription and protein expression[1].
ln Vivo
It is clear that CK2 inhibitor 2 (60–90 mg/kg; po twice day for 4 weeks) inhibits tumor growth in a dose-dependent manner, reaching a maximum inhibitory rate of 69% at 90 mg/kg[1]. The Cmax (7017.8 ng/mL), elimination half-life (t1/2=6.67 h), and CL (0.60 L/h/kg) of CK2 inhibitor 2 (25 mg/kg; single po) in SD rats[1].
Cell Assay
Apoptosis Analysis[1]
Cell Types: HCT-116 cells
Tested Concentrations: 5, 10, 20 μM
Incubation Duration: 24 hrs (hours)
Experimental Results: The apoptotic ratio reached about 55% at the concentration of 20 μM.

Western Blot Analysis[1]
Cell Types: HCT-116 cells
Tested Concentrations: 5, 10, 20 μM
Incubation Duration: 24 hrs (hours)
Experimental Results: Inhibited the expression of p-Akt1S129 and p-Cdc37S13 in a dose-dependent manner.
Animal Protocol
Animal/Disease Models: Male BALB/c athymic nude mice (5 weeks old; 16-18 g) were injected HCT-116 cells[1]
Doses: 60, 90 mg/kg
Route of Administration: Po twice a day for 4 weeks
Experimental Results: Inhibited the tumor growth in a dose-dependent manner. No conspicuous change in body weight.

Animal/Disease Models: SD (Sprague-Dawley) rats[1]
Doses: 25 mg/ kg (pharmacokinetic/PK Analysis)
Route of Administration: A single po
Experimental Results: Cmax=7017.8 ng/mL, t1/2=6.67 h, CL=0.60 L/h/kg.
References
[1]. Wang Y, et, al. Discovery of 5-(3-Chlorophenylamino)benzo[ c][2,6]naphthyridine Derivatives as Highly Selective CK2 Inhibitors with Potent Cancer Cell Stemness Inhibition. J Med Chem. 2021 Apr 22;64(8):5082-5098.
These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C21H17CLN4O2
Molecular Weight
392.84
CAS #
2641079-92-5
SMILES
C1(NC2=CC=CC(Cl)=C2)C2=C(C=NC=C2)C2=CC=C(C(NCCO)=O)C=C2N=1
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 : 50 mg/mL (127.28 mM)
Solubility (In Vivo)
Solubility in Formulation 1: 2.08 mg/mL (5.29 mM) in 10% DMSO + 90% Corn Oil (add these co-solvents sequentially from left to right, and one by one), clear solution; with sonication.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 20.8 mg/mL clear DMSO stock solution to 900 μL of corn oil and mix evenly.

 (Please use freshly prepared in vivo formulations for optimal results.)
Preparing Stock Solutions 1 mg 5 mg 10 mg
1 mM 2.5456 mL 12.7278 mL 25.4557 mL
5 mM 0.5091 mL 2.5456 mL 5.0911 mL
10 mM 0.2546 mL 1.2728 mL 2.5456 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.

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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.

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