1. Cell Cycle/DNA Damage Apoptosis
  2. CDK DNA/RNA Synthesis Apoptosis
  3. HQY1428

HQY1428 is an orally active CDK12 inhibitor. HQY1428 inhibits DNA replication, causes G2/M arrest in SKOV3 cells, induces DNA double-strand breaks and apoptosis. HQY1428 has anti-tumor activity in the SKOV3 xenograft mouse model. HQY1428 combined with the HER2 inhibitor Lapatinib (HY-50898) in the NCI-N87 xenograft mouse model produces a synergistic therapeutic effect.

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HQY1428

HQY1428 Chemical Structure

CAS No. : 3093763-71-1

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Solid + Solvent (Highly Recommended)
10 mM * 1 mL in DMSO
ready for reconstitution
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10 mM * 1 mL in DMSO In-stock
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Based on 1 publication(s) in Google Scholar

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Description

HQY1428 is an orally active CDK12 inhibitor. HQY1428 inhibits DNA replication, causes G2/M arrest in SKOV3 cells, induces DNA double-strand breaks and apoptosis. HQY1428 has anti-tumor activity in the SKOV3 xenograft mouse model. HQY1428 combined with the HER2 inhibitor Lapatinib (HY-50898) in the NCI-N87 xenograft mouse model produces a synergistic therapeutic effect[1].

IC50 & Target[1]

CDK12

 

Molecular Weight

547.04

Formula

C25H28ClFN6O3S

CAS No.
Appearance

Solid

Color

White to off-white

SMILES

O=S(C1=C(C=CC=C1)NC2=C(C=NC(N[C@@H]3CCCN(C3)C(C4=CC(F)=CC(N)=C4)=O)=N2)Cl)(C(C)C)=O

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 (182.80 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 1.8280 mL 9.1401 mL 18.2802 mL
5 mM 0.3656 mL 1.8280 mL 3.6560 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
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Concentration
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Volume
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Molecular Weight *

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

This equation is commonly abbreviated as: C1V1 = C2V2

Concentration (start)

C1

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Volume (start)

V1

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C2

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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: ≥ 5 mg/mL (9.14 mM); Clear solution

    This protocol yields a clear solution of ≥ 5 mg/mL (saturation unknown).

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (50.0 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% Corn Oil

    Solubility: ≥ 5 mg/mL (9.14 mM); Clear solution

    This protocol yields a clear solution of ≥ 5 mg/mL (saturation unknown). If the continuous dosing period exceeds half a month, please choose this protocol carefully.

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (50.0 mg/mL) to 900 μL Corn oil, and mix evenly.

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
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 1.8280 mL 9.1401 mL 18.2802 mL 45.7005 mL
5 mM 0.3656 mL 1.8280 mL 3.6560 mL 9.1401 mL
10 mM 0.1828 mL 0.9140 mL 1.8280 mL 4.5700 mL
15 mM 0.1219 mL 0.6093 mL 1.2187 mL 3.0467 mL
20 mM 0.0914 mL 0.4570 mL 0.9140 mL 2.2850 mL
25 mM 0.0731 mL 0.3656 mL 0.7312 mL 1.8280 mL
30 mM 0.0609 mL 0.3047 mL 0.6093 mL 1.5233 mL
40 mM 0.0457 mL 0.2285 mL 0.4570 mL 1.1425 mL
50 mM 0.0366 mL 0.1828 mL 0.3656 mL 0.9140 mL
60 mM 0.0305 mL 0.1523 mL 0.3047 mL 0.7617 mL
80 mM 0.0229 mL 0.1143 mL 0.2285 mL 0.5713 mL
100 mM 0.0183 mL 0.0914 mL 0.1828 mL 0.4570 mL
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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.

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HQY1428
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HY-172970
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