1. GPCR/G Protein Neuronal Signaling
  2. Orexin Receptor (OX Receptor)
  3. MK-3697

MK-3697 is an isonicotinamide small molecule, acting as a potent and selective Orexin 2 receptor antagonist with Ki = 0.

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

MK-3697 Chemical Structure

MK-3697 Chemical Structure

CAS No. : 1224846-01-8

Size Price Stock Quantity
Solid + Solvent
10 mM * 1 mL in DMSO
ready for reconstitution
USD 132 In-stock
Solution
10 mM * 1 mL in DMSO USD 132 In-stock
Solid
1 mg USD 57 In-stock
5 mg USD 120 In-stock
10 mg USD 150 In-stock
50 mg USD 450 In-stock
100 mg USD 650 In-stock
200 mg   Get quote  
500 mg   Get quote  

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Description

MK-3697 is an isonicotinamide small molecule, acting as a potent and selective Orexin 2 receptor antagonist with Ki = 0.95 nM. IC50 value: 0.95 nM(Ki) Target: Orexin 2 receptor antagonist MK-3697 is a highly potent, orally bioavailable selective orexin 2 receptor antagonists (2-SORAs) that possess acceptable profiles for clinical development. Herein we report additional SAR studies within the “triaryl” amide 2-SORA series focused on improvements in compound stability in acidic media and time-dependent inhibition of CYP3A4. MK-3697 has improved stability and TDI profiles as well as excellent sleep efficacy across species.

Molecular Weight

447.51

Formula

C23H21N5O3S

CAS No.
Appearance

Solid

Color

Light yellow to yellow

SMILES

O=C(C1=CC(C2=CC(C)=CN=C2)=NC=C1C3=NC=CS3)NCC4=NC(OC)=C(OC)C=C4

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 : 22.5 mg/mL (50.28 mM; Need ultrasonic and warming; 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 2.2346 mL 11.1729 mL 22.3459 mL
5 mM 0.4469 mL 2.2346 mL 4.4692 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
=
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

=
Concentration (final)

C2

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Volume (final)

V2

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.
Calculation results:
Working solution concentration: mg/mL
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, 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 2.2346 mL 11.1729 mL 22.3459 mL 55.8647 mL
5 mM 0.4469 mL 2.2346 mL 4.4692 mL 11.1729 mL
10 mM 0.2235 mL 1.1173 mL 2.2346 mL 5.5865 mL
15 mM 0.1490 mL 0.7449 mL 1.4897 mL 3.7243 mL
20 mM 0.1117 mL 0.5586 mL 1.1173 mL 2.7932 mL
25 mM 0.0894 mL 0.4469 mL 0.8938 mL 2.2346 mL
30 mM 0.0745 mL 0.3724 mL 0.7449 mL 1.8622 mL
40 mM 0.0559 mL 0.2793 mL 0.5586 mL 1.3966 mL
50 mM 0.0447 mL 0.2235 mL 0.4469 mL 1.1173 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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Product Name:
MK-3697
Cat. No.:
HY-12301
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