2. Apoptosis Autophagy
  3. c-Myc Autophagy
  4. KJ Pyr 9

KJ Pyr 9 is an inhibitor of MYC with a Kd of 6.5 nM in in vitro assay.

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

KJ Pyr 9 Chemical Structure

KJ Pyr 9 Chemical Structure

CAS No. : 581073-80-5

Size Price Stock Quantity
Solid + Solvent (Highly Recommended)
10 mM * 1 mL in DMSO
ready for reconstitution
 USD 73 In-stock
Solution
10 mM * 1 mL in DMSO USD 73 In-stock
Solid
1 mg USD 26 In-stock
5 mg USD 66 In-stock
10 mg USD 92 In-stock
50 mg USD 356 In-stock
100 mg USD 647 In-stock
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Customer Review

Based on 6 publication(s) in Google Scholar

KJ Pyr 9 Related Antibodies

Top Publications Citing Use of Products

  • Biological Activity

  • Protocol

  • Purity & Documentation

  • References

  • Customer Review

Description

KJ Pyr 9 is an inhibitor of MYC with a Kd of 6.5 nM in in vitro assay.

IC50 & Target

Kd: 6.5±1.0 nM (MYC)[1]
In Vitro

KJ Pyr 9 (KJ-Pyr-9) interferes with MYC-MAX complex formation in the cell in a protein fragment complementation assay[1].
KJ Pyr 9 specifically inhibits MYC-induced oncogenic transformation in cell culture and has no or only weak effects on the oncogenic activity of several unrelated oncoproteins[1].
KJ Pyr 9 preferentially interferes with the proliferation of MYC-overexpressing human and avian cells and specifically reduces the MYC-driven transcriptional signature[1].
KJ Pyr 9 against three cell lines (NCI-H460, MDA-MB-231, and SUM-159PT) is tested known to be dependent on increased MYC activity[1].
KJ Pyr 9 can inhibit the proliferation of all cell lines with IC50 values between 5 and 10 μM[1].
KJ Pyr 9 is more sensitive (IC50 values between 1 and 2.5 μM) for the proliferation of Burkitt lymphoma cell lines with constitutively high expression of c-MYC[1].

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

KJ Pyr 9 Related Antibodies
In Vivo

KJ Pyr 9 (i.p.; 10 mg/kg; daily; for 31 d) has the ability to halt tumor growth[1].

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

385.37

Formula

C22H15N3O4
CAS No.
Appearance

Solid

Color

Light yellow to yellow

SMILES

O=C(N)C1=CC=C(C2=CC(C3=CC=CO3)=NC(C4=CC=C([N+]([O-])=O)C=C4)=C2)C=C1
Shipping

Room temperature in continental US; may vary elsewhere.
Storage
Powder -20°C 3 years
4°C 2 years
In solvent -80°C 2 years
-20°C 1 year
Solvent & Solubility
In Vitro: 

DMSO : 125 mg/mL (324.36 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 2.5949 mL 12.9745 mL 25.9491 mL
5 mM 0.5190 mL 2.5949 mL 5.1898 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, 2 years; -20°C, 1 year. When stored at -80°C, please use it within 2 years. When stored at -20°C, please use it within 1 year.

  • 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 (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    90% (20% SBE-β-CD in Saline)

    Solubility: 2.5 mg/mL (6.49 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.
  • Protocol 2

    Add each solvent one by one:  10% DMSO    90% Corn Oil

    Solubility: ≥ 2.5 mg/mL (6.49 mM); Clear solution

    This protocol yields a clear solution of ≥ 2.5 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 (25.0 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

Purity: 99.62%

COA (247 KB) LCMS (94 KB)

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

Assays used staining with the redox dye resazurin to measure cell viability. Cells are seeded at 103 per 100 μL well in 96-well plates and grown in the presence of 2.5% FBS. MDA-MB-231 cells are cultured in DMEM; SUM-159PT cells are cultured in HAM’s F12; and NCI-H460 cells are cultured in RPMI-1640. MDA-MB-231 cells are exposed to KJ Pyr 9 (KJ-Pyr-9) for 216 h with fresh compound-containing medium supplied at 120 and 192 h; SUM-159PT cells are exposed to the compound for 120 h and fresh medium with the appropriate compound concentrations is supplied at 48 h; and NCI-H460 cells are grown with compound for 72 h. Triplicate cultures of P493-6 cells are grown in six-well plates from a starting density of 1×105 cells per mL in 4 mL culture medium per well. Compounds are added immediately following cell seeding. Following compound addition, cells are distributed by vortexing the plate at 400 rpm for 10 s. One hundred-microliter samples are taken after vortexing and counted using a Beckman Coulter Z1 counter at 0, 12, 24, 36, 48, 60, 72, and 96 h of incubation[1].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.
Animal Administration
[1]

Mice[1]
Ten 8-wk-old female nude mice (HSD:athymic nude-Foxn1nu) are injected with 5×106 MDA-MB-231 cells s.c. into the left and right flanks. Cells are suspended in high-concentration Matrigel before injection. Xenograft tumors are allowed to grow until the average volume of the tumors reached 100 mm3, as measured by external calipers. At this point, the mice are divided into two groups. One receive 10 mg/kg KJ Pyr 9 and the other receive vehicle only, dosed daily by i.p. injection. Tumor volume and mouse weight are measured daily. Vehicle used in all cases is 10:10:80 Tween 80:DMSO:5% dextrose in water. The mice are treated for a period of 31 d. At the end of the experiment, the mice are euthanized and tumors are excised. Tumors are weighed. Samples of each tumor are fixed in formalin for histology and frozen for Western blotting.

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, 2 years; -20°C, 1 year. When stored at -80°C, please use it within 2 years. When stored at -20°C, please use it within 1 year.

Optional Solvent Concentration Solvent Mass 1 mg 5 mg 10 mg 25 mg
DMSO 1 mM 2.5949 mL 12.9745 mL 25.9491 mL 64.8727 mL
5 mM 0.5190 mL 2.5949 mL 5.1898 mL 12.9745 mL
10 mM 0.2595 mL 1.2975 mL 2.5949 mL 6.4873 mL
15 mM 0.1730 mL 0.8650 mL 1.7299 mL 4.3248 mL
20 mM 0.1297 mL 0.6487 mL 1.2975 mL 3.2436 mL
25 mM 0.1038 mL 0.5190 mL 1.0380 mL 2.5949 mL
30 mM 0.0865 mL 0.4325 mL 0.8650 mL 2.1624 mL
40 mM 0.0649 mL 0.3244 mL 0.6487 mL 1.6218 mL
50 mM 0.0519 mL 0.2595 mL 0.5190 mL 1.2975 mL
60 mM 0.0432 mL 0.2162 mL 0.4325 mL 1.0812 mL
80 mM 0.0324 mL 0.1622 mL 0.3244 mL 0.8109 mL
100 mM 0.0259 mL 0.1297 mL 0.2595 mL 0.6487 mL
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KJ Pyr 9 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:

KJ Pyr 9581073-80-5KJ Pyr9KJ Pyr-9c-MycAutophagyMycInhibitorinhibitorinhibit

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