1. Fenclonine

Fenclonine  (Synonyms: 4-Chloro-DL-phenylalanine; PCPA; CP-10188)

Cat. No.: HY-B1368 Purity: 99.92%
COA Handling Instructions

Fenclonine is a selective and irreversible tryptophan hydroxylase inhibitor, which is a rate-limiting enzyme in the biosynthesis of serotonin. Fenclonine can be used in carcinoid syndrome research.

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

Fenclonine Chemical Structure

Fenclonine Chemical Structure

CAS No. : 7424-00-2

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Solid + Solvent
10 mM * 1 mL in DMSO
ready for reconstitution
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Solution
10 mM * 1 mL in DMSO USD 61 In-stock
Solid
500 mg USD 55 In-stock
1 g USD 66 In-stock
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Customer Review

Based on 14 publication(s) in Google Scholar

Top Publications Citing Use of Products
  • Biological Activity

  • Purity & Documentation

  • Customer Review

Description

Fenclonine is a selective and irreversible tryptophan hydroxylase inhibitor, which is a rate-limiting enzyme in the biosynthesis of serotonin. Fenclonine can be used in carcinoid syndrome research[1][2][3].

In Vivo

Fenclonine (intraperitoneal injection; 100 mg/kg; once daily; 3 d) treatment can inhibit Morphine-induced anti-nociceptive activity[2].
? Fenclonine (intraperitoneal injection; 300 mg/kg; once daily; 3 d) pretreatment completely abolishes the effects of a 50?mg/kg dose of Paracetamol[3].

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

Animal Model: Wistar albino rats of either sex and weighing between 80 and 100 g[2]
Dosage: 100 mg/kg
Administration: Intraperitoneal injection; 100 mg/kg; once daily; 3 days
Result: Inhibited the antinociceptive activity of Morphine by 41.5%.
Animal Model: Male Swiss mice (22–25 g)[3]
Dosage: 300 mg/kg
Administration: Intraperitoneal injection; 300 mg/kg; once daily; 3 days
Result: Inhibited the effects of Paracetamol in depression-like and compulsion-like behavior.
Molecular Weight

199.63

Formula

C9H10ClNO2

CAS No.
Appearance

Solid

Color

White to off-white

SMILES

NC(CC1=CC=C(Cl)C=C1)C(O)=O

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 : 100 mg/mL (500.93 mM; ultrasonic and adjust pH to 2 with HCl; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

H2O : 4.55 mg/mL (22.79 mM; ultrasonic and warming and adjust pH to 2 with HCl and heat to 60°C)

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 5.0093 mL 25.0463 mL 50.0927 mL
5 mM 1.0019 mL 5.0093 mL 10.0185 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.

* 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 (12.52 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 (12.52 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:  0.5% CMC-Na/saline water

    Solubility: 20 mg/mL (100.19 mM); Suspended 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.
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: 99.92%

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
H2O / DMSO 1 mM 5.0093 mL 25.0463 mL 50.0927 mL 125.2317 mL
5 mM 1.0019 mL 5.0093 mL 10.0185 mL 25.0463 mL
10 mM 0.5009 mL 2.5046 mL 5.0093 mL 12.5232 mL
15 mM 0.3340 mL 1.6698 mL 3.3395 mL 8.3488 mL
20 mM 0.2505 mL 1.2523 mL 2.5046 mL 6.2616 mL
DMSO 25 mM 0.2004 mL 1.0019 mL 2.0037 mL 5.0093 mL
30 mM 0.1670 mL 0.8349 mL 1.6698 mL 4.1744 mL
40 mM 0.1252 mL 0.6262 mL 1.2523 mL 3.1308 mL
50 mM 0.1002 mL 0.5009 mL 1.0019 mL 2.5046 mL
60 mM 0.0835 mL 0.4174 mL 0.8349 mL 2.0872 mL
80 mM 0.0626 mL 0.3131 mL 0.6262 mL 1.5654 mL
100 mM 0.0501 mL 0.2505 mL 0.5009 mL 1.2523 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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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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Fenclonine
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