2. Cell Cycle/DNA Damage
  3. Polo-like Kinase (PLK)
  4. Ocifisertib

Ocifisertib  (Synonyms: CFI-400945 free base)

Cat. No.: HY-12300 Purity: 99.92%
COA Handling Instructions

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CFI-400945 free base is a potent, selective and orally bioavailable PLK4 inhibitor with a Ki and an IC50 of 0.26 nM and 2.8 nM, respectively.

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

Ocifisertib Chemical Structure

Ocifisertib Chemical Structure

CAS No. : 1338806-73-7

Size Price Stock Quantity
Solid + Solvent (Highly Recommended)
10 mM * 1 mL in DMSO
ready for reconstitution
 USD 127 In-stock
Solution
10 mM * 1 mL in DMSO USD 127 In-stock
Solid
5 mg USD 108 In-stock
10 mg USD 175 In-stock
50 mg USD 620 In-stock
100 mg USD 990 In-stock
200 mg   Get quote  
500 mg   Get quote  

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This product is a controlled substance and not for sale in your territory.

Customer Review

Based on 4 publication(s) in Google Scholar

Other Forms of Ocifisertib:

Ocifisertib Related Antibodies

Top Publications Citing Use of Products

View All Polo-like Kinase (PLK) Isoform Specific Products:

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PLK1 PLK2 PLK3 PLK4

  • Biological Activity

  • Protocol

  • Purity & Documentation

  • References

  • Customer Review

Description

CFI-400945 free base is a potent, selective and orally bioavailable PLK4 inhibitor with a Ki and an IC50 of 0.26 nM and 2.8 nM, respectively.

IC50 & Target[1]

PLK4

2.8 nM (IC50)

AURKA

140 nM (IC50)

AURKB/INCENP

98 nM (IC50)

TIE2/TEK

22 nM (IC50)

TRKA

6 nM (IC50)

TRKB

9 nM (IC50)

In Vitro

CFI-400945 (compound 48) shows potent inhibitory activities against a panel of kinases, including PLK4, TRKA, TRKB, AURKA, AURKB/INCENP, and TIE2/TEK, with IC50s of 2.8, 6, 9, 140, 98, 22 nM, and EC50s of 12, 84, 88, 510, 102, 117 nM, respectively. CFI-400945 exhibits growth inhibition effects on breast, lung, ovarian and colon cancer cells. The IC50s (in μM) are as follows: SKBr-3 (5.3), Cal-51 (0.26), BT-20 (0.058), A549 (0.005), OVCAR-3 (0.018), SW620 (0.38), Colo-205 (0.017), and HCT116+/+ (0.004) [1]. CFI-400945 inhibits autophosphorylation of PLK4 at serine 305 with an EC50 value of 12.3 nM in cells overexpressing PLK4. Cancer cells treated with CFI-400945 exhibit effects consistent with PLK4 kinase inhibition, including dysregulated centriole duplication, mitotic defects, and cell death[2].

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

Ocifisertib Related Antibodies
In Vivo

Oral administration of CFI-400945 (3.0, 9.4 mg/kg) to mice bearing human cancer xenografts results in the significant inhibition of tumor growth at doses that are well tolerated. Increased antitumor activity is observed in PTEN-deficient compared to PTEN wild-type cancer xenografts. The maximum tolerated dose for once-daily administration of CFI-400945 is estimated to be 7.5-9.5 mg/kg[2].

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

534.65

Formula

C33H34N4O3
CAS No.
Appearance

Solid

Color

White to yellow

SMILES

O=C([C@@]12[C@H](C3=CC4=C(C=C3)C(/C=C/C5=CC=C(CN6C[C@@H](C)O[C@@H](C)C6)C=C5)=NN4)C1)NC7=C2C=C(OC)C=C7
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 : 100 mg/mL (187.04 mM; Need ultrasonic; 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 1.8704 mL 9.3519 mL 18.7038 mL
5 mM 0.3741 mL 1.8704 mL 3.7408 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.

  • 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: ≥ 2.5 mg/mL (4.68 mM); Clear solution

    This protocol yields a clear solution of ≥ 2.5 mg/mL (saturation unknown).

    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 (4.68 mM); Suspended solution; Need ultrasonic

    This protocol yields a suspended solution of 2.5 mg/mL. Suspended solution can be used for oral and intraperitoneal injection.

    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.
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).
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

Purity: 99.92%

COA (255 KB) LCMS (94 KB)

Handling Instructions (2659 KB)
References
Kinase Assay
[1]

Active PLK4 is purified and used to measure PLK4 activity, using an indirect ELISA detection system. PLK1, PLK2, PLK3, AURKA, and AUKB/INCENP compound inhibition are determined using FRET-based homogeneous assay kits from Invitrogen. The assays are performed with ATP concentrations of 25, 60, and 80 μM, respectively, for PLK1, PLK2, and PLK3 and ATP concentrations of 20 and 128 μM, respectively, for AURKA and AURKB/INCENP[1].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.
Cell Assay
[2]

MDA-MB-468, MCF-7, HCC1954, MDA-MB-231, SKBr-3, Cal-51, and BT-20 breast cancer cells are treated with 10 nM to 50 μM CFI-400945 for 5 days. Cell viability is measured using SRB assay[2].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.
Animal Administration
[2]

To treat an established tumor, CFI-400945 and the vehicle (water) are administered by oral gavage (2.5-20 mg/kg), and 5-FU and carboplatin are administered by intraperitoneal injection to mice as described in the text. Animal weights are monitored daily, and tumor volume is measured three times per week[2].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.
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. 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 1.8704 mL 9.3519 mL 18.7038 mL 46.7596 mL
5 mM 0.3741 mL 1.8704 mL 3.7408 mL 9.3519 mL
10 mM 0.1870 mL 0.9352 mL 1.8704 mL 4.6760 mL
15 mM 0.1247 mL 0.6235 mL 1.2469 mL 3.1173 mL
20 mM 0.0935 mL 0.4676 mL 0.9352 mL 2.3380 mL
25 mM 0.0748 mL 0.3741 mL 0.7482 mL 1.8704 mL
30 mM 0.0623 mL 0.3117 mL 0.6235 mL 1.5587 mL
40 mM 0.0468 mL 0.2338 mL 0.4676 mL 1.1690 mL
50 mM 0.0374 mL 0.1870 mL 0.3741 mL 0.9352 mL
60 mM 0.0312 mL 0.1559 mL 0.3117 mL 0.7793 mL
80 mM 0.0234 mL 0.1169 mL 0.2338 mL 0.5845 mL
100 mM 0.0187 mL 0.0935 mL 0.1870 mL 0.4676 mL
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Ocifisertib 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:

Ocifisertib1338806-73-7CFI-400945CFI400945CFI 400945Polo-like Kinase (PLK)cancertumorInhibitorinhibitorinhibit

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