1. GPCR/G Protein
  2. Adenosine Receptor
  3. KI-7

KI-7 is an A2B adenosine receptor positive allosteric modulator. KI-7 potentiates the cAMP accumulation induced by the non-selective A2B adenosine receptor agonist NECA (EC50=445.8 nM). KI-7 also potentiates the cAMP accumulation induced by the selective A2B adenosine receptor agonist BAY 60-6583 as well as by adenosine with EC50s of 2390 nM and 2550 nM, respectively.

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KI-7 Chemical Structure

KI-7 Chemical Structure

CAS No. : 1489263-00-4

Size Price Stock Quantity
Solid + Solvent
10 mM * 1 mL in DMSO
ready for reconstitution
USD 121 In-stock
Solution
10 mM * 1 mL in DMSO USD 121 In-stock
Solid
5 mg USD 110 In-stock
10 mg USD 187 In-stock
25 mg USD 385 In-stock
50 mg USD 605 In-stock
100 mg USD 1045 In-stock
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500 mg   Get quote  

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Based on 1 publication(s) in Google Scholar

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Description

KI-7 is an A2B adenosine receptor positive allosteric modulator. KI-7 potentiates the cAMP accumulation induced by the non-selective A2B adenosine receptor agonist NECA (EC50=445.8 nM). KI-7 also potentiates the cAMP accumulation induced by the selective A2B adenosine receptor agonist BAY 60-6583 as well as by adenosine with EC50s of 2390 nM and 2550 nM, respectively[1][2].

In Vitro

KI-7 (1 μM; 5-21 days; mesenchymal stem cells) induces a significant increase in mRNA expression of Runx2 and Osterix[1].
KI-7 (1 μM; 15-21 days) induced a significant increase in cell viability in both differentiation stages[1].
KI-7, as A2B adenosine receptor positive allosteric modulator in MSCs, demonstrating it is able to potentiate the effects of either adenosine and synthetic orthosteric A2B adenosine receptor agonists in mediating osteoblast differentiation in vitro. NECA, BAY 60-6583 and KI-7 induce a strong increase in IL-6 production. KI-7 is able to potentiate the effects of orthosteric agonists in both differentiation stages, even if the effect became significant only at 21 days[1].

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

Molecular Weight

354.40

Formula

C23H18N2O2

CAS No.
Appearance

Solid

Color

White to off-white

SMILES

O=C(NC1=CC=CC=C1)C(C2=CN(CC3=CC=CC=C3)C4=C2C=CC=C4)=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 : 250 mg/mL (705.42 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 2.8217 mL 14.1084 mL 28.2167 mL
5 mM 0.5643 mL 2.8217 mL 5.6433 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)

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

This equation is commonly abbreviated as: C1V1 = C2V2

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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% Corn Oil

    Solubility: ≥ 2.08 mg/mL (5.87 mM); Clear solution

    This protocol yields a clear solution of ≥ 2.08 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 (20.8 mg/mL) to 900 μL Corn oil, and mix evenly.

In Vivo Dissolution Calculator
Please enter the basic information of animal experiments:

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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 2.8217 mL 14.1084 mL 28.2167 mL 70.5418 mL
5 mM 0.5643 mL 2.8217 mL 5.6433 mL 14.1084 mL
10 mM 0.2822 mL 1.4108 mL 2.8217 mL 7.0542 mL
15 mM 0.1881 mL 0.9406 mL 1.8811 mL 4.7028 mL
20 mM 0.1411 mL 0.7054 mL 1.4108 mL 3.5271 mL
25 mM 0.1129 mL 0.5643 mL 1.1287 mL 2.8217 mL
30 mM 0.0941 mL 0.4703 mL 0.9406 mL 2.3514 mL
40 mM 0.0705 mL 0.3527 mL 0.7054 mL 1.7635 mL
50 mM 0.0564 mL 0.2822 mL 0.5643 mL 1.4108 mL
60 mM 0.0470 mL 0.2351 mL 0.4703 mL 1.1757 mL
80 mM 0.0353 mL 0.1764 mL 0.3527 mL 0.8818 mL
100 mM 0.0282 mL 0.1411 mL 0.2822 mL 0.7054 mL
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KI-7 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.

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KI-7
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