2. GPCR/G Protein Neuronal Signaling
  3. Neuropeptide Y Receptor
  4. M871

M871  (Synonyms: Galanin-(2-13)-Glu-His-(Pro)3-(Ala-Leu)2-Ala-amide)

Cat. No.: HY-P1130 Purity: 99.80%
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M871 (Galanin-(2-13)-Glu-His-(Pro)3-(Ala-Leu)2-Ala-amide) is a selective galanin receptor type 2 (GalR2) antagonist. M871 exhibits Ki values of 13.1 nM and 420 nM for GalR2 and GalR1, respectively. M871 can be used for research on GalR2-related diseases (such as epilepsy, pain).

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

Custom Peptide Synthesis

M871 Chemical Structure

M871 Chemical Structure

CAS No. : 908844-75-7

Size Price Stock Quantity
1 mg USD 150 In-stock
5 mg USD 375 In-stock
10 mg USD 580 In-stock
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Based on 1 publication(s) in Google Scholar

M871 Related Antibodies

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View All Neuropeptide Y Receptor Isoform Specific Products:

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NPY Y1 receptor NPY Y2 receptor NPY Y4 receptor NPY Y5 receptor

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Description

M871 (Galanin-(2-13)-Glu-His-(Pro)3-(Ala-Leu)2-Ala-amide) is a selective galanin receptor type 2 (GalR2) antagonist. M871 exhibits Ki values of 13.1 nM and 420 nM for GalR2 and GalR1, respectively. M871 can be used for research on GalR2-related diseases (such as epilepsy, pain)[1].

IC50 & Target

GalR2[1].
Molecular Weight

2287.61

Formula

C108H163N27O28
CAS No.
Appearance

Solid

Color

White to off-white

Sequence

H2N-Trp-Thr-Leu-Asn-Ser-Ala-Gly-Tyr-Leu-Leu-Gly-Pro-Glu-His-Pro-Pro-Pro-Ala-Leu-Ala-Leu-Ala-NH2
Sequence Shortening

WTLNSAGYLLGPEHPPPALALA-NH2
Shipping

Room temperature in continental US; may vary elsewhere.
Storage

Sealed storage, away from moisture and light

Powder -80°C 2 years
-20°C 1 year

*In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture and light)

Solvent & Solubility
In Vitro: 

DMSO : 100 mg/mL (43.71 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 0.4371 mL 2.1857 mL 4.3714 mL
5 mM 0.0874 mL 0.4371 mL 0.8743 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 (sealed storage, away from moisture and light). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

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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 (1.09 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.
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).

*In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture and light)

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 (sealed storage, away from moisture and light). 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 0.4371 mL 2.1857 mL 4.3714 mL 10.9284 mL
5 mM 0.0874 mL 0.4371 mL 0.8743 mL 2.1857 mL
10 mM 0.0437 mL 0.2186 mL 0.4371 mL 1.0928 mL
15 mM 0.0291 mL 0.1457 mL 0.2914 mL 0.7286 mL
20 mM 0.0219 mL 0.1093 mL 0.2186 mL 0.5464 mL
25 mM 0.0175 mL 0.0874 mL 0.1749 mL 0.4371 mL
30 mM 0.0146 mL 0.0729 mL 0.1457 mL 0.3643 mL
40 mM 0.0109 mL 0.0546 mL 0.1093 mL 0.2732 mL
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M871 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:

M871908844-75-7Galanin-(2-13)-Glu-His-(Pro)3-(Ala-Leu)2-Ala-amideM 871M-871Neuropeptide Y ReceptorNPY receptorepilepsypainInhibitorinhibitorinhibit

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