1. GPCR/G Protein
  2. GnRH Receptor
  3. Fertirelin

Fertirelin is a GnRH and LH-RH analogue; it also becomes the treatment choice for reversing cow follicular cysts.

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

Custom Peptide Synthesis

Fertirelin Chemical Structure

Fertirelin Chemical Structure

CAS No. : 38234-21-8

Size Price Stock Quantity
Solid + Solvent
10 mM * 1 mL in DMSO
ready for reconstitution
USD 213 In-stock
Solution
10 mM * 1 mL in DMSO USD 213 In-stock
Solid
2 mg USD 72 In-stock
5 mg USD 120 In-stock
10 mg USD 168 In-stock
50 mg USD 228 In-stock
100 mg   Get quote  
200 mg   Get quote  

* Please select Quantity before adding items.

This product is a controlled substance and not for sale in your territory.

Customer Review

Based on 1 publication(s) in Google Scholar

Top Publications Citing Use of Products
  • Biological Activity

  • Protocol

  • Purity & Documentation

  • References

  • Customer Review

Description

Fertirelin is a GnRH and LH-RH analogue; it also becomes the treatment choice for reversing cow follicular cysts.

In Vivo

Fertirelin, an analog of GnRH 2.5 to 10 times more potent than native GnRH , has become the treatment of choice for reversing follicular cysts[1]. Administration of high doses of Fertirelin is found to reduce superovulatory responses[2].

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

Molecular Weight

1153.29

Formula

C55H76N16O12

CAS No.
Appearance

Solid

Color

White to off-white

Sequence

{Glp}-His-Trp-Ser-Tyr-Gly-Leu-Arg-Pro

Sequence Shortening

{Glp}-HWSYGLRP

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 (86.71 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

H2O : 100 mg/mL (86.71 mM; Need ultrasonic)

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 0.8671 mL 4.3354 mL 8.6708 mL
5 mM 0.1734 mL 0.8671 mL 1.7342 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.

* Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.

  • Molarity Calculator

  • Dilution Calculator

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 (2.17 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.
  • Protocol 2

    Add each solvent one by one:  10% DMSO    90% (20% SBE-β-CD in Saline)

    Solubility: ≥ 2.5 mg/mL (2.17 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 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.

For the following dissolution methods, please prepare the working solution directly. It is recommended to prepare fresh solutions and use them promptly within a short period of time.
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:  PBS

    Solubility: 50 mg/mL (43.35 mM); Clear solution; Need ultrasonic

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
This product has good water solubility, please refer to the measured solubility data in water/PBS/Saline for details.
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).
Purity & Documentation
References
Animal Administration
[2]

Mice[2]
Nulliparious female mice weighed 25-28 g (8-9 weeks) are used throughout the study. The mice are ddY strain and specific pathohen-free. As ovulation can be induced in mice at any time with administration of human chorionic gonadotrophin (hCG), 5.0 IU of hCG is injected subcutaneously into each mouse at 17:00, irrespective of the stage of the estrus cycle. This day is designated as Day 0. Nine groups are established according to the dose of Fertirelin ranging from 0.001 to 1.0 μg, and the administration are carried out at 22:00 on Day 0 and at 2:00, 6:00, 10:00 and 14:00 on Day 1[2].

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, 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 / H2O 1 mM 0.8671 mL 4.3354 mL 8.6708 mL 21.6771 mL
5 mM 0.1734 mL 0.8671 mL 1.7342 mL 4.3354 mL
10 mM 0.0867 mL 0.4335 mL 0.8671 mL 2.1677 mL
15 mM 0.0578 mL 0.2890 mL 0.5781 mL 1.4451 mL
20 mM 0.0434 mL 0.2168 mL 0.4335 mL 1.0839 mL
25 mM 0.0347 mL 0.1734 mL 0.3468 mL 0.8671 mL
30 mM 0.0289 mL 0.1445 mL 0.2890 mL 0.7226 mL
40 mM 0.0217 mL 0.1084 mL 0.2168 mL 0.5419 mL
50 mM 0.0173 mL 0.0867 mL 0.1734 mL 0.4335 mL
60 mM 0.0145 mL 0.0723 mL 0.1445 mL 0.3613 mL
80 mM 0.0108 mL 0.0542 mL 0.1084 mL 0.2710 mL

* Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.

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Fertirelin 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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